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`Page 1
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`Nnx°°aQO©ns
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`Facebook's Exhibit No. 1009
`Page 1
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`

`

`COOLEY GODWARD LLP
`LIBRARY
`
`
`MCGRAW-HILL Mine
`DICTIONARYOF
`SON IGAND
`~TCHNIEAL
`TERMS
`FifthEdition
`
`Sybil P. Parker
`Editorin Chief °
`
`COOLEY GODWARDLL?
`LIBRARY
`5 PALO ALTO SQUARE
`PALO ALTO, CA 94306
`
`Auckland
`Montreal
`
`New York
`Caracas
`Bogota
`NewDelhi
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`McGraw-Hill, Inc.
`San Francisco
`Washington, DC,
`Lisbon
`London
`Madrid
`San Juan
`Singapore
`Sydney
`
`Milan
`Mexico City
`Tokyo
`Toronto
`
`Facebook's Exhibit No. 1009
`Page 2
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`Facebook's Exhibit No. 1009
`Page 2
`
`

`

`Onthe cover: Photomicrograph of crystals of vitamin B,.
`(Dennis Kunkel, University of Hawaii )
`
`Included in this Dictionary are definitions which have been published previously in thefollowing works: P. B.
`Jordain, Condensed Computer Encyclopedia, Copyright.© 1969 by McGraw-Hill, Inc. All rights reserved. J.
`Markus, Electronics and Nucleonics Dictionary,4thed., Copyright © 1960, 1966, 1978 by McGraw-Hill, Inc.
`All rights reserved. J.Quick, Artists’ andIllustrators’Encyclopedia,Copyright © 1969by McGraw-Hill,Inc. All
`rights reserved. Blakiston’s GouldMedicalDictionary,'3ded., Copyright © 1956, 1972 by McGraw-Hill,Inc, All
`rights reserved, T. Baumeister and L. S. Marks, eds., Standard Handbookfor Mechanical Engineers, 7th cd.,
`Copyright © 1958, 1967 by McGraw-Hill,Inc. All rights reserved.)
`ne
`In addition, material has been drawn from the followingreferences: RE. Huschke,GlossaryofMeteorology,
`American MeteorologicalSociety, 1959; U‘S. Air Force GlossaryofStandardizedTerms, AFManual 11-1, vol.
`1, 1972; Communications-Electronics Terminology, AF Manual L-1,vol:3, 1970;.W.-H.Allen,ed., Dictionary
`ofTechnical Termsfor Aerospace Use,
`ist ed., National Aeronautics andSpace Administration, 1965; I. M.
`Gilliland, Solar-Terrestrial Physics: A Glossary ofTerms and AbbreviationsRoyal Aircraft Establishment Tech-
`nical Report 67158, 1967; Glossary ofAir TrafficControl Terms, Federal:Aviation Agency; A Glossary ofRange
`
`
`Terminology, White Sands Missile Range, NewMexico, NationalBureau of Standards, AD 467-424; A DOD
`Glossary ofMapping, Charting and Geodetic Terms, Ist ed:,Departmentof Defense, 1967; P. W. Thrush, comp.
`and ed.,A DictionaryofMining, Mineral,andRelatedTerms;Bureau ofMines,/1968; NuclearTerms:A Glossary,
`2d ed., Atomic Energy Commission; F. Casey,ed.) Compilation of Terms in Information Sciences Technology,
`Federal Council for Science andTechnology, 1970; GlossaryofStinfoTerminology, Office of Aerospace Research,
`U.S. Air Force, 1963; Naval Dictionary ofElectronic, Technical, andlimperative Terms, Bureau of Naval Person-
`nel, 1962; ADP Glossary, Departmentofthe Navy, NAVSOP-3097. Ags
`
`
`McGRAW-HILL DICTIONARYOF SCIENTIFIC ANDTECHNICAL TERMS,
`Fifth Edition
`"
`eee
`AN
`Copyright © 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill, Inc. All rights reserved, Printed in the United
`States of America. Except as permitted underthe United States Copyright Act of 1976, no part ofthis publication
`may be reproduced or distributed in any form or by-any means, orstoredin‘a database or retrieval system, without
`i
`the prior written permission of the.publisher.
`fe
`
`34567890
`DOWDOW 998765. %
`.
`Oy
`
`ISBN 0-07-042333-4
`
`-
`!
`
`Ae
`
`Library of Congress Cataloging-in-Publication Data
`McGraw-Hill dictionary of scientific and technicalterms /
`Sybil P. Parker, editor in chief..—5th ed.
`1
`5
`em.
`:
`ISBN 0-07-042333-4
`1. Science—Dictionaries.
`I. Parker, Sybil P.
`Q123.M34=1993
`§03—de20
`:
`93-34772cIP
`
`2. Technology—Dictionaries.
`
`-
`
`INTERNATIONAL EDITION
`Copyright © 1994. Exclusive rights by McGraw-Hill,Inc. for manufacture and export. This book cannot be re-
`exported from the country to which it is consigned by McGraw-Hill. The InternationalEdition is not available in
`North America.
`Whenorderingthis title, use ISBN 0-07-1 13584-7.
`
`.
`
`Facebook's Exhibit No. 1009
`Page 3
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`Facebook's Exhibit No. 1009
`Page 3
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`

`

`
`
`sigma phase
`
`signal standardization
`
`1823
`
`{ ‘sig:
`
`{ ‘sige
`
`an ordinary nucleus. Designated £~ hyperonic atom.
`In seismic analysis, a correction to
`signal correction [ENG]
`ma 'mPnas |hi-pojriinik 'ad-am }
`eliminate the time differences between reflection times, result-
`sigma phase [met] A brittle, nonmagnetic phaseoftetrag-
`ing from changes in the outgoing signal from shot to shot.
`{ ‘signal ka,rek-shan }
`onal structure occurring in many transition-metal alloys; fre-
`quently encountered in high chromiumstainless steels.
`_{ ‘sige
`signal detection theory [psycH] A theory which character-
`moa.,faz }
`izes not only the acuity ofan individual’s discrimination but
`[NuUcLEO] Anassembly of moderating material
`sigma pile
`also the psychological factors that bias his judgment.
`{
`‘sig:
`containing a neutron source, used to study the absorption cross
`nal di'tek-shan ,thé-a'ré }
`sectionsand other neutron properties of the material.
`{ ‘sigma
`signal distance [comput sci] The numberofbits that are
`pil }
`notthe same in two binary words of equal length. Also known
`sigmaring [MATH] Arring ofsets where any countable union
`as hammingdistance.
`{
`'sig-nal ,dis-tans }
`of its members is alsoa member.
`{
`'sig-ma rig }
`signal distortion generator
`[rL.ecrr]
`Instrument designed
`sigmaspire
`[inv zoo] An S-shaped spongespicule.
`to apply known amountsofdistortion ona signalfor the purpose
`ma,spir }
`oftesting and adjusting communications equipment such as
`Anabbreviated valueofthe density of
`sigma-T [ocEANoGR]
`teletypewriters.
`{ ‘signal di'storshan ,jen‘a,rad-ar }
`a sea-water sample of temperature T and salinity S: oT =
`signaleffect
`[ENG]
`In seismology, variation in arrival times
`[p(S,7)—1]} X 10°, where p(S,7) is the value of the sea-water
`ofreflections recorded with identicalfilter settings, as a result
`density in centimeter-gram-second units at standard atmos-
`of changesin the outgoing signal.
`{
`'sig:nal i,fekt }
`pheric pressure.
`{
`'sigema 'té }
`signal flare
`[ENG] A pyrotechnic flare ofdistinct color and
`sigmatron [NUCLEO] A cyclotron and betatron operating in
`character used as asignal.
`{
`'sig-nal fer )
`tandem to producebillion-volt x-rays.
`{
`'sig-ma,triin }
`signal-flow graph [sys ENG] An abbreviated block diagram
`sigmatropic shift
`[orG CHEM] A rearrangementreaction that
`in which small circles, called nodes, represent variables of the
`consists of the migration of a sigma bond(that is, the sigma
`system, and the nodes are connected by lines, called branches,
`electrons) and the group of atoms that are attached to it from
`which represent one-way signal multipliers; an arrow onthe line
`one position in a chain or ring into a new position.
`{
`|sig-
`indicates direction of signal flow, andaletter near the arrow
`majtripik ‘shift }
`indicates the multiplication factor. Also knownas flow graph.
`'sig,moid }
`{
`sigmoid [Brot] S-shaped.
`{ ‘signal |fld 'graf }
`sigmoidaldune [Geo] A dune withan S-shaped ridge crest
`signal generator
`[ENG]
`An electronic test instrument that
`formed by the merger of crescentic dunes.
`{ sig'mdid-al‘diin }
`deliversa sinusoidal outputat an accurately calibrated frequency
`sigmoidal fold [Gro.] A recumbentfold having an axial
`that may be anywhere from the audio to the microwaverange;
`surface which resembles the Greekletter sigma.
`{ sig'mdid-al
`the frequency and amplitude are adjustable over a wide range,
`‘fold }
`é
`and the output usually may be amplitude- or frequency-modu-
`sigmoid colon
`[anat] The S-shaped portion of the colon
`lated. Also known astestoscillator.
`{ ‘sig:nal ,jenva,rad-ar}
`betweenthe descending colon and the rectum.
`{
`'sig,mdid 'ko-
`signal in band [commun] To send control signals at fre-
`lan }
`quencies within the frequency range of the data signal.{‘sig-
`sigmoiddistortion [optics] A distortion present in line-scan
`nal in |band}
`imagery, causing straight lines cut obliquely to appear as sig-
`[prysio] A cell whose products induce a spe-
`signaling cell
`moid curves.
`{
`'sig,mdid di'stérshan}
`cific responsein target cells.
`{
`'sig-na-lin ,sel }
`sigmoiditis
`[mep]
`Inflammation ofthe sigmoid flexureofthe
`signaling key See key.
`{
`'sig-no-lin ,ké }
`colon.
`{ ,sigemdi'did-as }
`signalingrate [CcommuN]
`Therate at which signals are trans-
`mitted.
`(
`'sigenalin ,rit }
`An appliance for the inspection, by
`sigmoidoscope [mp]
`artificial light, of the sigmoid colon; it differs from the procto-
`Theelectric-field strength of the
`signalintensity [commun]
`Scope in its greater length and diameter.
`{ sig'moid'a,skép}
`electromagnetic wave transmitting a signal.
`{
`'sig-nal in,ten-
`sad-é }
`sign {comMMUN]
`Insemiotics, an entity that signifies some
`signal level
`[commun]
`Thedifference between the level of
`other thing, and may be interpreted.
`[mMaTH]
`1. A symbol
`which indicates whether a quantity is greater than zero or less
`a signal at a point in a transmission system and the level of an
`than zero; the signs are often the marks + and — respectively,
`arbitrarily specified reference signal.
`{
`'sig-nal lev-al }
`but other arbitrarily selected symbols are used, especially in
`signal light
`[commun] A light specifically designed for the
`automatic data processing.
`2. A unit of plane angle, equal to
`transmission of code messages by means ofvisible light rays
`30° or w/6 radians.
`{ sin }
`that are interrupted or deflected by electric or mechanical means.
`signage [Grapuics] Environmental graphic communications
`[enc] A Signal, illumination, or any pyrotechnic light used as
`whose functions includedirection,identification, information or
`asign.
`{
`'sig-nal lit}
`orientation, regulation, warning,orrestriction.
`{ ‘sin«ij }
`signal molecule [piocHeM] A molecule produced by asig-
`signal
`[comMuN]
`1. A visual, aural, or other indication used
`naling cell,
`{
`'sig-nal ,miil-a,kyiil }
`to convey information.
`2. The intelligence, message, or effect
`signal normalization See signal standardization.
`normala'za-shon }
`to be conveyed over a communication system. 3. See signal
`wave.
`|
`'sig-nal }
`Tosend control signals al
`[commun]
`signal out of band
`signalarea [NAv] That partofan airportusedfor the display
`frequencies outside the frequency range of the data signal.
`{ {signal aut av band }
`of visual ground signals for the benefit of aircraft in flight.
`( ‘signal jer-é-a }
`signalprocessing [commun] The extraction ofinformation
`Formofteletypewriter signal distor-
`signal bias
`[commun]
`from complex signals in the presence ofnoise, generally by
`tion brought about by the lengthening or shortening of pulses
`conversion of the signals into digital form followed by analysis
`during transmission; when marking pulsesare all lengthened, a
`using various algorithms.
`{
`'sig-nal ,pri,ses-in }
`signal regeneration [commun] The restoration of a wave-
`marking signal bias results; when marking pulses are all short-
`ened, a spacing signal bias results.
`{
`'sig-nal ,bivas }
`form representing a signalto its original amplitude and shape.
`signal carrier Seecarrier.
`{ ‘signal ,kar-é-ar}
`Also known assignal reshaping.
`{
`'sig-nal ré,jen-a'rirshan }
`signal center
`[commun] A combination of signal commu-
`signal reporting code Seradio-signal reporting code.
`| ‘sig:
`nal ri'pordin ,kod }
`nicationfacilities operated by the U.S. Army inthe field and
`consisting of a communications center,
`telephone switching
`signal reshaping See signal regeneration.
`in}
`central, and appropriate means of signal communications.
`{
`'sig-nal sen-tar }
`signalrocket
`[orp] A rocket that gives off some character-
`
`signal channel [commun]Asignal path for transmitting
`istic color or display which has a meaning according to an
`electric signals; such paths may be separated by frequency di-
`established code.
`{
`'sigenal ,riik-at }
`vision or time division.
`{
`'sig:nal ,chan-al }
`signal-shaping network
`[ELECTR] Network inserted in a
`signalconditioning [commun] Processing the form or mode
`telegraph circuit, usually at the receiving end, to improve the
`of a signal so as to makeit intelligible to or compatible with a
`waveform of the code signals.
`{
`'sig-nal |sh4p-in ,net,wark }
`signalspeed [commun]
`Therate at which code elements are
`given device, such as a data transmission line, including such
`manipulation as pulse shaping, pulse clipping, digitizing, and
`transmitted by a communications system.
`{
`'sig-nal spéd }
`linearizing.
`{
`'sig-nal kon,dishsan-in }
`signal standardization [ComMUN] The use of one signal to
`
`{
`
`'sig-nal
`
`{
`
`'sigenal ré,shap-
`
`Facebook's Exhibit No. 1009
`Page 4
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`Facebook's Exhibit No. 1009
`Page 4
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