The
`Atnerican
`Heritage® Dictionary
`of the English Language
`
`FOURTH EDITION
`
`~~ HOUGHTON MIFFLIN COMPANY
`· ., ~ Boston New York
`
`•
`
`Energetiq Ex. 2085, page 1 - IPR2015-01279
`
`

`
`Words are included in this Dictionary on the basis of their usage.
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`shown with an initial capital and are also identified as trademarks. No
`investigation has been made of common-lnw trademark rights in any
`word, because such investigation is impracticable. The inclusion of any
`word in this Dictionary is not, however, an expression of the
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`lSBN- 13: 978-0-618-70172-8
`ISBN-JO: 0-618-70172-9
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`TSBN-10: 0-618-70173-7 (hardcover with CD-ROM)
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`Library of Congress Caraloging-iu-Publicllrwn Data
`
`The American Heritage didionary of the English language.-4th ed.
`P·
`em.
`ISBN 0-395-82517-2 (hardcover) -ISBN 0-618-08230-1
`(hardcover with CD ROM)
`l. English language-Oidionaries
`PE1628 .A623 2000
`42>-<lal
`
`00-025369
`
`Manufactured in the United States of America
`
`~.
`
`Energetiq Ex. 2085, page 2 - IPR2015-01279
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`

`
`omnisexuall one
`
`onager
`Equus hemionus subsp. onager
`
`j:
`
`·*'
`
`.. , .. .. .. '
`·--..
`..• 1' ,' . '
`(·.
`·J···.~~~.;-.
`
`~
`
`•" fi<
`' .
`
`1228
`
`•!• n. A
`
`om•ni•sex•u•al (iim'ne-seklsho-o-ol) adj. Pansexual.
`pansexual person. -om'ni•sex'u•alli•ty n.
`om•ni•um-gath•er•um (iim'ne-om-giithlor-om) n. A miscella(cid:173)
`neous collection; a hodgepodge. (Latin omnium, genitive pl. of omnis, all;
`see op- in Appendix I + gatherum (mock-Latinate alteration of GATH(cid:173)
`ER).]
`om•ni•vore (iimlno-vor', -v6r') n. 1. An omnivorous person or an(cid:173)
`imal. 2. One that takes in everything available, as with the mind. [From
`New Latin Omnivora, omnivores, from neuter pl. of Latin onmivorus,
`omnivorous. See OMNIVOROUS.]
`om•niv•o•rous (iim-nlv'or-os) adj. 1. Eating both animal and veg(cid:173)
`etable foods. 2. Taking in everything available, as with the mind: an om(cid:173)
`nivorous reader. [From Latin omnivorus : omni-, omni- + -varus,
`-vorous.] -om•niv'o•rous•ly adv. -om•niv'o•rous•ness n.
`Om•o•lon (iim'o-lon') A river, about 965 km (600 mi) long, of
`northeast Russia flowing northward to the Kolyma River.
`O•mot•ic (6-miitlik) n. A branch of the Afro-Asiatic language family,
`spoken in Ethiopia. [After the Omo River in western Ethiopia.]
`om•pha•los (iimlfo-liis', -los) tz., pl. -li (-ll) 1. The navel. 2. A cen(cid:173)
`tral part; a focal point. [Greek. See nobh- in Appendix I.]
`Omsk (omsk) A city of south-central Russia at the confluence of the
`Irtysh and Om rivers. On the Trans-Siberian Railroad, it is a major river
`port and transportation hub. The city was founded in 1716. Population:
`1,163,885.
`on (on, on) prep. 1a. Used to indicate position above and supported
`by or in contact with: The vase is on the table. We rested on our hatzds and
`knees. b. Used to indicate contact with or extent over (a surface) regard(cid:173)
`less of position: a picture on the wall; a rash on my back. c. Used to indi(cid:173)
`cate location at or along: the pasture on the south side of the river; a house
`on the highway. d. Used to indicate proximity: a town on the border. e.
`Used to indicate attachment to or suspension from: beads on a string. f.
`Used to indicate figurative or abstract position: on the young side, but ex(cid:173)
`perienced; on her third beer; stopped otz chapter two. 2a. Used to indicate
`actual motion toward, against, or onto: jumped on the table; the march on
`Washington. b. Used to indicate figurative or abstract motion toward,
`against, or onto: going on six o'clock; came on the answer by accident. 3a.
`Used to indicate occurrence at a given time: on july third; every hour on
`the hour. b. Used to indicate the particular occasion or circumstance: On
`entering the room, she saw him. 4a. Used to indicate the object affected
`by actual, perceptible action: The spotlight fell on the actress. He knocked
`on the door. b. Used to indicate the object affected by a figurative action:
`Have pity on them. c. Used to indicate the object of an action directed,
`tending, or moving against it: an attack on the fortress. d. Used to indicate
`the object of perception or thought: gazed on the vista; meditated on his
`actions. 5. Used to indicate the agent or agency of a specified action: cut
`his foot on the broketz glass; talked on the telephone. Ga. Used to indicate
`a medicine or other corrective taken or undertaken routinely: wetzt on a
`strict diet. b. Used to indicate a substance that is the cause of an addic(cid:173)
`tion, a habit, or an altered state of consciousness: high on dope. 7a. Used
`to indicate a source or basis: "We will reach our judgments not on inten(cid:173)
`tions or on promises but on deeds and on results" (Margaret Thatcher). b.
`Used to indicate a source of power or energy: The car runs on methane.
`Sa. Used to indicate the state or process of: on leave; on fire; on the way.
`b. Used to indicate the purpose of: travel on business. c. Used to indicate
`a means of conveyance: ride on a train. d. Used to indicate availability by
`means of: beer on tap; a physician on call. 9. Used to indicate belonging
`to: a nurse on the hospital staff. 10. Used to indicate addition or repeti(cid:173)
`tion: heaped error on error. 11 a. Concerning; about: a book on astronomy.
`b. Concerning and to the disadvantage of: We have some evidence on him.
`12. Informal In one's possession; with: I haven't a cent on me. 13. At the
`expense of; compliments of: drinks on the house. •!• adv. 1. In or into a
`position or condition of being supported by or in contact with some(cid:173)
`thing: Put the coffee on. 2. In or into a position of being attached to or
`covering something: Put your clothes on. 3. In the direction of something:
`He looked on while the ship docked. 4a. Toward or at a point lying ahead
`in space or time; forward: The play moved on to the next city. b. At or to
`a more distant point in time or space: I'll do it later on. 5. In a continuous
`course: He worked on quietly. Ga. In or into performance or operation:
`Titrn on the radio. b. In progress or action; in a state of activity: The show
`must go on. 7. In or at the present position or condition: stay on; hang
`on. 8. In a condition of being scheduled for or decided upon: There is a
`party on tonight. •!• adj. 1. Being in operation: The television is on. 2a.
`Engaged in a given function or activity, such as a vocal or dramatic role:
`You're on in five minutes! b. Under or behaving as if under observation:
`A minister is always on. 3. Informal Functioning or performing at a high
`degree of competence or energy: The goalie is really on. 4a. Planned; in(cid:173)
`tended: We have nothing much on for this weekend. b. Happening; taking
`place: The parade is on. 5. Baseball Having reached base safely; on base:
`Two runners are on. -idioms: be on to Slang To be aware of or have
`information about: You'll never deceive us again; we're on to you. on and
`off Intermittently. on and on Without stopping; continuously. [Middle
`English, from Old English an, on. See an- in Appendix I.]
`
`Usage Note To indicate motion toward a position, both on and onto
`can be used: The cat jumped on the table. The cat jumped onto the table.
`Onto is more specific, however, in indicating that the motion was initi(cid:173)
`ated from an outside point. He wandered onto the battlefield means that
`he began his wandering at some point off the battlefield. He wandered on
`the battlefield may mean that his wandering began on the battlefield. •
`In constructions where on is an adverb attached to a verb, it should not
`be joined with to to form the single word onto: move on to (not onto) new
`subjects; hold on to (not onto) our gains. • In their uses to indicate spatial
`relations, on and upon are often interchangeable: It was resting on (or up-
`
`0
`
`,
`
`ON abbr. 1. Old Norse 2. Ontario
`-on' suff. 1a. Subatomic particle: baryon b
`.
`2. Basic hereditary unit: codon. [From ION ].
`· Una;
`2
`.
`-on suff. Inert gas: radon. [New Latin, from (
`-On 3 suff. A chemical compound that is not ARG)o~oq
`that contains oxygen in a carbonyl group: P a ketone or a
`arath1011. [A
`--QNE.]
`•
`•
`on-a•gam, off-a•gam (iin'~-gi'n' iif'o- o
`mal Existing or continuing sporadically; inte;~~1• 0f-,on'-l
`on-again, off-again correspondence.
`I tent or oc
`on•a•ger (iin'~-jor) n. 1. A fast-running wild
`subsp. onager) of central Asia, having an erect m ass (Eq,
`stripe along its back. 2. An ancient and medieval ane an
`engine. [Middle English, from Late Latin, from ~o~e­
`Greek .onagros : onos, ass + agrios, wild; see agro- i a~n,
`on-a1r (iinlarl, on'-) adj. Spoken, occurring
`n PPen
`.
`.
`ff h
`d h.
`, or used d
`Urtng ~-
`castmg: a'! on-atr ga e; c ange
`IS on-air name.
`o•nan•lsm (61no-nlz'om) n. 1. Masturbation. 2. C .
`.
`.
`,.
`[After Onan, son of Judah (Genesis 38:9).] -olnan ?Itus,nterr~
`isltic adj. •
`•tst n. -o'~
`.
`O•nas:s•s _(6-niis'ls,_ o-':'a'sls), Anstotle 1906?-!975.
`·
`Greek fmanC!er and shippmg magnate who pioneered the
`pertankers.
`Onassis, Jacqueline Lee Bouvier Kennedy See 1
`.
`Bouvier Kennedy.
`acquelu~ ~
`O•fia•te (6-nyalte), Juan de 1550?-1630? Spanish expl
`quistador. He claimed New Mexico for Spain in 1598 andorerand~.
`served ll%i\!;
`governor until1607.
`on•boardor on-board (6n-biird1, -b6rdl, on-) adj. Carried<!r
`aboard a vehicle or vessel: onboard radar systems. -on•boardl dt~
`once (wiins) adv. 1. On_e time only: once a day. 2. At one tim:ifi~
`past; formerly. 3. At any time; ever: Once known, h1s face is never f
`.
`ten. 4. By one degree of relatiOnship: my firSt co11stn once removed. T
`A sing~e occ':'rrence; one t~e: Once will have to do. You ca11 go just~
`once. ••• con]. As soon as; If ever; when: Once he goes, we am cleat~ "i'(cid:173)
`•!• adj. Having been formerly; former: the once capital of the na(cid:173)
`-idiom: at once 1. All at one time; simultaneously: Everything~
`pened at once. The view of the skyline is at once awesome, grand, and<fil..
`appointing. 2. Immediately; instantly: Leave the room at once. [M~
`English ones, from on, one, from Old English an. See oi-no- in Ap~
`I.]
`once-o•ver (wiins'6'v~r) n. Informal A quick but comprehcnsl¥1:
`survey or performance: Let's give this memorandum the once-over.
`+ oncet (wiinst) adv. Southern & South Midland U.S. Once. [Varian!<#
`ONCE.]
`on•cho•cer•ci•a•sis (6ng'k6-s~r-kl'o-sls) 11. A diseasecault'di'l
`infestation with filarial worms of the genus Onchocerca, especially a dl>·
`ease of humans caused by 0. volvulus and characterized by nodularswe-ll·
`ings on the skin and lesions of the eyes. Transmitted by black .
`disease occurs in tropical regions of Africa and Central Amenca. k
`called river blindness. [New Latin: Onchocerca, genus name (Greekm:rc!f;
`barb+ Greek kerkos, tail)+ -IASIS.]
`. h>i·
`on•ci•di•um (iin-sld'e-om, iing-kldl-) n. Any of numerouseplP ··.I
`ic tropical American orchids of the genus Oncidium, having 'kuste~~~
`showy flowers. [New Latin Oncidium, genus name : Greek 01~. 0~nutr.t
`hook (from the shape of its labellum) + New Latin -idi11111, 'un
`suff. (from Greek -idion).]
`transl~>t·
`on•co•gene (iinlko-jen, iing'-) n. A gene that cau~es thae
`mation of normal cells into cancerous tumor cells, espeCially
`that transforms a host cell into a tumor cell. [Greek onkos, mass,
`see ONCOLOGY+ GENE.]
`·Jtioll
`on•co•gen•e•sis (iin'ko-ji'n'l-sls, iing'-) n. The f~7inApptn·
`development of tumors. [Greek onkos, mass, tumor; see ne
`use or gr.·c
`dix I + --GENES!~.]
`.
`on•co•gen•1c (6n'k6-jenlik, iing'-) adj. Tendmg to c~-eeoNCOt·
`rise to tumors: an oncogenic virus. [Greek onkos, mass, tumor,'
`OGY + --GENIC.]-on'co•ge•nic'i•ty ( -j~-nls'l-te) 11•
`edicinC tb:'
`on•col•o•gy (iin-kiillo-je, iing-) n. The branch of Ill diagne>-<'"
`deals with tumors, including study of their developmen~~k-' in 1?~
`treatment, and prevention. [Greek o~kos, mass, ~~~or;ls)eeon'co•I09 1
`pendix I +-LOGY.] -on'co•logft•cal (-ko-loJ'I-ko •
`.•.
`( -liij'ik) adj .• -on•collo•gist n.
`. approach"'~-
`.
`on•com•mg (iinlkiim'lng, on'-) adj. Commg nearer,
`f
`f a groliR ~s
`an oncoming storm. •!• n. An approach; an advance.
`) n AllY o
`. IJ!f'
`•
`(" k' '
`v>·
`on•cor•na•v1•rus on- or no-vl ros, ong-
`I
`"
`mors 111
`·
`viruses that contain single-stranded RNA and produce~~ + jtl'JA +
`l
`and mammals. [Greek onkos, mass, tumor; see ONCOLO
`b,;og· .
`Rus l
`f tb<
`.
`.
`rving '
`one (wiin) adj. 1. Being a single entity, unit, obJect, or ;,e. 3a. O·ngle
`Characterized by unity; undivided: They spoke w_rth one ;~rmiog :' 51 cnl
`bitting ,,to, ,,r
`same kind or quality: two animals of one spectes. b.
`entity of two or more components: three chemicals cofll P categori~.llt
`solution. 4. Being a single member or element o~ a gro~i~g ill con
`kind: I'm just one player on the team. 5. Being a smgle t
`
`Energetiq Ex. 2085, page 3 - IPR2015-01279