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`Medical
`Dictionary
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`28th Edition
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`
`Illustrated in Color
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`$429 LIPPINCOTTWILLIAMS 8WILKINS
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`A Wolters Kluwer Company
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`Publisher: Julie K. Stegman
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`New Terms Editor: Thomas W. Filardo, MD
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`Chief Copyediior: Raymond Lukens
`Copyeditonr: Ellen Atwood, Vincent Ercolano, Ellen Erkcss, Linda Searing
`Pronunciations Editor: William R. Hensyl
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` Copyright © 2006
`Lippincott Williams & Wilkins
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`Copyright © by William Wood and Company: 1911, lst ed.,' 1912, 2nd ed.; 1914, 34 ed; 1916, 4th ed; 1918, 5th I
`ed; 1920, 6th ed; 1922, 7th ed; 1924, 8th ed; 1926, 9th ed; 1928, 10th ed; 1930, 11th ed.
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` Copyright © by Lippincott Williams & Wilkins: 2000, 27th ed.
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`Database design by Lexi~Comp lnc. Hudson, OH
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`Printed in the United States of America by Quebecor World
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`Library of Congress Cataloging-in—Publication Data
`Stedman, Thomas Lathrop, 18534938.
`
`
`Stedman's medical dictionary. —28th ed.
`
`p. ; cm.
`Includes bibliographical references and index.
`ISBN-l3:978~0-7817—3390~8
`ISBN 0481733904 (aik. paper)
`1. Medicine--Dictionaries.
`1. Title. H. Title: Medical dictionary.
`[DNLM:
`l. Medicine—-Dictionary--English. W 13 SSlZm 2006]
`R121 .88 2006
`610'.3--dc22
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`Copyright © by Williams & Wilkins: 1933, 12th ed; 1935, 13th ed; 1939, 14th ed; 1942, 15th ed.; 1946, 16th ed.;
`1949, 17th ed.; 1953, 18th ed.; 1957, 19th ed.; 1961, 20th ed; 1966, 215tcd.; 1972, 22nd ed.; 1976, 23rd ed.; 1982
`24th ed; 1990, 25th ed; 1995, 26th ed.
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`reproduced in any form or by any means, including photocopying, or utilized by any information storage and
`retrieval system without written permission from the copyright owner.
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`2005021544
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`

` implant
`
`
`into bone previously threaded by a tap, or by selfetapping, the i.
`
`
`esophagea hepatis [TA], SYN .
`eal i. on liver [TA], the marking of the esophagus on
`cutting threads in the bone as it is inserted into a predrilled hole.
`I: of the 1m lobe of the liver. SYN impressio ESOPhagea
`triplant i., a combination of three pin i.’S to form a single
`i. gastrica hepatis [TA], SYN 5.3.
`
`
`abutment to support or retain a dental prosthesis.
`
`im‘planataation (hn’planeta’shun). 1. Attachment of the bias—
`
`
`tocyst to the endometrium, and its subsequent embedding in the
`
`'. ligamenti costoclavicularis [TA], SYN
`
`m dentistry, the i. that is used to make the master cast.
`"his?
`or
`compact layer, occurring 6—7 days after fertilization of the oocyte
`
`
`.
`.
`in humans. 2, The process of placing a device or substance within
`I on liver [TA], a hollow on the visceral surface of the
`I
`'
`i. petrosa pallii, SYN penny.
`I,
`the body, e.g., placement of a salinerfilled device beneath the
`"b 0.f the liver corresponding to the location of the stomach.
`
`
`i. renalis hepatis [TA], SYN r:
`c
`essio gastrica hepatis [TA].
`.
`.
`breast mound. 3. Insertion of a natural tooth into an artificially
`
`
`i. suprarenalis hepatis [TA], SYN
`constructed alveoius. 4. Tissue grafting. SEE ALSO transplantation.
`
`on spleen [TA], the surface of the spleen in contact
`
`
`
`stomach. SYN facies gastrica Splems [TA], gastric surface
`central i., i. in which the blastocyst remains in the uterine cavity,
`
`as in carnivores, rhesus monkeys, and rabbits. SYN circumferential
`
`
`
`
`i., superficial i.
`1 [TA]. A mark seemjagl
`
`
`im-presasion (impresses).
`
`circumferential i., SYN
`
` by pressure of one structure or organ on another, seen es
`enture ., an i. or negative copy of all or a part of the
`
`
`
`collagen i., SYN 5
`
`311 edentulous dental arch or area, made for the purpose of
`during cadaveric dissections. See also groove for the
`
`'ng or constructing a partial denture.
`_
`.
`_
`impressions of the lungs, e.g., descending aorta, subclavigm -'
`
`
`osal i. of the pallium, a shallow impressmu on the inferior
`and vena cava. SYN impressio [TA]. 2. An effect produced
`of the cerebral hemisphere made by the superior margin
`
`mind by some external objects acting through the Organs 0 s
`
`etrous part of the temporal bone. SYN 1mpress1o petrosa
`
`SYN mental i. 3. An imprint or negative likeness; especially
`
`
`
`negative form of the teeth andfor other tissues of the oral c
`
`.made in a plastic material that becomes relatively hard
`minary i., in dentistry, an i. made-for the purpose of diagnOw
`
`
`the construction of a tray. SYN primary 1.
`while in contact with these tissues, made to reproduce a po
`
`
`form or cast of the recorded tissues; classified, according
`
`h
`'y i., SYN
`..
`.
`materials of which they are made, as reversible and irreve
`
`i. on liver [TA], a hollow on the Visceral surface oft e
`
`hydrocolloid 1., modeling plastic 1., plaster i., and wax'
`olje of the liver, in which lies the right kidney. SYN imprese
`
`
`'
`' he atis [TA].
`impressio, fr. im— prime; pp. prewar, to press upon]
`
`
`
`
`Hahn; sgleen [TA], the portion of the visceral surface of the
`aortic i. of left lung, a broad deep groove on the medial a
`
`of the left lung above and behind the hilum receiving the
`
`
`that contacts the 13ft kidney. SYN fac1es renahs splemca
`
`the aorta and the thoracic aorta. SYN aortic sulcus,
`'
`facies renalis lienis
`, renal surface of spleen.
`aortica pulmonis Sinistri, sulcus aorticus.
`b'oid i., SYN :
`.
`..
`
`
`int '
`basilar i., an invagination of the base of the skull
`cnal i., an i. that ls made 1n sections.
`posterior fossa with compression of the brainstem and cere__
`renal i. on liver [TA], a hollow on the visceral surface of
`structures into the foramen magnum. Cf. platybasia.
`1. A sudden collapse, as of an
`im-plovsion (imrplfi’shfin).
`ht lobe of the liver, adjoining the groove for inferior venae
`
`
`cardiac i. of diaphragmatic surface of liver [TA],
`in which lies the right soprarerlal gland. SYN impressm
`evacuated vessel, in which there is a bursting inward rather than
`
`
`outward as in an explosion. 2. A type of behavior therapy, similar
`enalis hepatis [TA].
`.
`~
`
`
`to flooding, during which the patient is given massive exposure to
`I na! i. [TA], a depression on the antenor surface of the
` faciei diaphragmaticae hepatis [TA].
`
`extreme anxietyrarousing stimuli by being asked to describe, and
`
`
`S portion of the temporal bone, near the apex, formed in
`cardiac i. on lung [TA], the depression on the medizd surf 3
`thus relive in imagination, those life events or situations typically
`nship to the trigeminal ganglion. SYN impressm tngennnahs
`each lung produced by the presence of the heart. It is
`
`
`producing these overwhelming emotional reactions. As the patient
`
`
`pronounced on the left lung. SYN impressio cardiaca pulrr'l
`does so, the therapist attempts to extinguish the future influence
`
`-'
`im’ riot-in . A particular kind of learning char-
`"2; Sign: ocgurrenceghn the first few hours of life; deter—
`of such unconscious material over the patient’s behavior and
`
`
`feelings, and previous avoidance re3ponses to the stimuli are
`_
`i.’s of cerebral gyri [TA], the depressions on the inner s
`
`of the Skull that correspond to the convolutions of the brain-
`eS'Spccies-recognition behavior.
`'
`_
`~
`replaced by more appropriate responses.
`
`in-ap- par-ent {in’a—par’ent). blot apparent; beneath the thresh-
`
`'omic i., epigenetic process that leads to inactivation of pate-r7
`impresgéones gyrorum [TA], impressiones digitatae*, jug
`old of clinical recognition, as an mapparent infection.
`im-po-tence, im-po-ten-cy (im'po—tens, Sense). 1. Weak}
`or-Inatemal allele of certain genes suscepttble to eprgenettc
`ebralia , digitate ifs.
`-
`
`
`-
`-
`-
`‘
`—
`'e-tens . Lack of desire or of craving.
`I
`ness;
`lack of power. 2. Specifically,
`inability of the male to
`lation; accounts, among others, for the Angelman and Prader—
`"EL-33:722:32:36? :3. rpetiiiis, to strive after, long for ((10?va
`
`colic i. on liver [TA], a hollow on the visceral surface'of
`achieve or maintain penile erection and thus engage in copulation;
`syndromes.
`
`right lobe of the liver anteriorly, corresponding to the Situatio
`
`
`a manifestation of neurologic, vascular, or psychological dysfunc—
`
`'ulse (irn’puls). 1. A sudden pushing or driving force. 2. A
`the right flexure and beginning of the transverse colon. SYN.
`in.ar-tic»u- late (in’ar—tik’yfirlat). 1. Not articulate in speech. 2.
`tion. [L. imporentia, inability, fr. inf neg. + polemic, power]
`
`
`pressio colica hepatis [TA].
`Unable to express oneself satisfactorily in words.
`11, often unreasoning, determination to perform some act. 3.
`
`psychic i., that caused by psychological factors.
`
`action potential of a nerve fiber. [1... im-pello, pp. -pulsus, to
`colic i. of spleen [TA], the part of the visceral Surface of.
`in-as-sim-i - lavble (in’ii—sim’i-lfi—bél). .Not assimilable; not car
`vasculogenic i., i. due to alterations in the flow of blood to and
`
`
`against, impel {inp-)]
`.
`from the penis.
`spleen in contact with the colon. SYN facies colica splcnis
`
`pable of undergoing assimilation. SEE asstmilanon.
`-
`
`colic surface of spleen.
`i., conventionally the lowermost, leftmost area of cardiac
`
`
`insatoten-tion (in—a-ten’shun). Lack of attention};1 negligence.l
`complete denture i., (1) an i. of an edentulous arch ma
`'on that is usually palpable. -
`.
`
`
`'
`'.
`ect of attentiveness in whic
`a person a'7
`
`rdiac i., movement of the chest wall produced by cardiac
`$1233?ghbriinora:Eroid perceiving that which generates amoety.
`the purpose of constructing a. complete denture; (2) a nega
`traction.
`
`registration of the entire denture—bearing, stabilizing area of
`
`
`
`
`sensory i., the inability to feel a tactile stimulus when a Snmllflir
`
`
`
`Stimulus, presented simultaneously in a homologous area of t e
`1. The act of making
`im-preg-na-tlon (im’preg—na’shfin).
`
`body, is perceived.
`
`pregnant. 2. The process of diffusing or permeating with another
`
`pe i., one or more ifs (atrial, junctional, or ventricular)
`
`substance, as in metallic i. of tissue components with silver nitrate
`visual i., the inability to perceive a Stimulus in a. visual field
`ring as a result of delay in the formation or arrival of impulses
` i. for costoclavicular ligament [TA], an irregular pitted'a
`or ammoniacal silver. SEE ALSO saturation.
`
`when a similar stimulus is presented and perceived Simultaneous—
`
`
`on the inferior Surface of the clavicle at its Sternal end._ 31V
`"m the prevailing pacemaker.
`.
`ly in the homologous visual field.
`im-pres-si-o, pl. irn-pres-s'-o-nes (ilnepres’ero, tin-pres
`I
`lStible'i., a compulsion to act such that one feels or claims
`attachment to the costoclavicular ligament. SYN impressm ll
`.
`
`
`
`e-o’nez) [TA]. SYN .~
`1%?
`{Li
`in-born (inborn).
`Initiated during development in utero. In the
`menti costoclavicularis [TA], costal tuberosity, rhomboid ‘
`not be resisted.
`‘
`berositas custalis.
`i. aortica pulmonis sinistri, SYN a:
`specific context of i. error of metabolism, it connotes a genetic
`
`id i., an i. that drives one to commit some act, usually otva
`
`deltoid i., SYN ’
`
`
`
`disruption of an enzyme. SEE inborn error of metabolism.
`SYN
`i. cardiac-a faciei diaphragmaticae hepatis [TA], SYN
`
`innate.
`
`
`digitate ifs, SYN
`. an -
`
`'
`’
`'
`'
`enetic
`I
`*fli‘:
`9. parasternal L’s, cardiac activity as palpable or recordable
`i. cardtaca pulmonis [TA], SYN
`direct bone i., an i. of denuded bone, used in the construction
`
`In-bred in bred). Denoting populations (e.g., groups, g
`lines) desizended over several generations almost exclusrvely from
`Si 0 the right of the sternum.
`
`
`subperiosteal denture implants.
`i. colica hepatic [TA], SYN -:.
`‘
`
`a small set of ancestors, and hence having a h1gh rate of consan-
`
`a:
`impressiones digitatae, *official alternate term for
`
`guinity, often occult.
`
`' ms that
`'
`'
`'
`I
`I
`i
`’
`
`i. duodenalis hepatic [TA], SYN-
`Inobreed-Ing (in bred-lug). 1. Mating between orgapis
`
`
`are genetically more closely related than orgamsms selected at
`
`
`
`1
`.
`
`
`
`
`
`,
`
`959
`
`inbreeding
`
`IMS Abbreviation for Indian Medical Service.
`
`i-rnus (I’mus). Lowest; the most interior or caudal of several
`similar structures.- IL]
`WW Abbreviation for intermittent mandatory ventilation.
`lMVlC (im’vik) Acronym for indole production. thhyl 16?:
`VogeseProskauer reaction, and ability to use citrate as a. so e
`source of carbon (1' inserted for euphony}; used primarily to dfifer—
`entiate Escherichia coli from Entembacter aerogenes and related
`
`.
`‘
`organisms.
`In Symbol for indium (preceding superscript number 1nd1cates an
`isotope); inulin.
`_
`-
`in-
`1. Not, akin to G. a—, an—, or Eng. uni. 2. In, within, inSide. 3.
`Very; appears as irn— before b, p, or m. [L]
`
`
`
`
`
`-l|1 A suffix widely used to form names of biochemical substanc—
`es, including proteins (e.g., globulin}, lipids {lecithin} hormones
`(insulin), botanical principles (digoxl‘n), antibiotics (sneptomy-
`cin), synthetic drugs (aspirin), dyes (305m), and others; 1n1tta]__ly a
`variant of -ine; in a few terms (e.g., dentin,
`thymxm, Spellings
`with and without final e are both found. [G. —inos,, L. -mus, ad].
`suffixes]
`in-ac-tion (in-ak’shfin).
`stimulus.
`
`inactivity, rest, or lack of response to a
`
`in-ac-ticvate (inaak’ti-vat). To destroy the-biologic activity or
`the effects of an agent or substance, as the activrty of complement
`is destroyed when serum is heated.
`
`in-ac-ti-vavtion (in’ak—ti-va’shfin), The process of destroying
`or removing the activity or the effects of an agent or substance;
`e.g., the complementary effect of a serum may be destroyed by
`means of i. at 56°C for 30 minutes.
`
`1372— neg. + anima,
`
`Iinsertional i., a technique of recombinant DNA technology used
`to select bacteria that carry recombinant plasmids; a fragment of
`foreign DNA is inserted into a restriction Site w1th1n a gene for
`antibiotic resistance, thus causing that gene to become nonfunc-
`tional.
`X i., SYN
`in-anwi-mate (in-an’i—rnat).
`breath, soul]
`
`
`
`Not alive.
`
`[L.
`
`Severe weakness and wasting as
`in-acniwtion (in’a-nish’un).
`occurs from lack of food, defect in assimilation, or neoplastic
`disease. [L. Mantis, empty]
`
`958
`
`
`
`
`
`
`
`i. of blastocyst in the ovarian cortex, causing an
`cortical i.,
`ovarian pregnancy. SEE ectOpic pregnancy.
`eccentric i., i. in which the blastocyst lies in a uterine crypt, as
`in the mouse, rat, and hamster.
`
`interstitial i., i. in which the blastocyst lies within the substance
`of the endometrium, as in humans and guinea pigs.
`nerve i., planting one nerve into the sheath of another nerve.
`pellet i.,
`intramuscular or subcutaneous insertion of an active
`therapeutic agent in pellet form to provide protracted absorption
`at a rate slower than subcutaneous or intramuscular injection and
`as a means of providing a sustained therapeutic effect without
`repeated administration.
`
`periosteal i., insertion of a normal tendon into the periosteum as
`part of a tendon transplantation operation.
`subcutaneous i., insertion of material under the skin.
`
`superficial i., SYN as.
`-
`
`
`
`
`
` '
`
`1. To fecundate or fertilize an
`[mopreg-nate (im—preg’nat).
`oocyte;
`to cause to conceive. 2. To diffuse or permeate with
`another substance. SEE ALSO saturate.
`[L.
`im-, in, + praegnans,
`with child]
`
`