`
`
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`SBIENIIHB ANll
`liflflNlfllll‘
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`litlhfllilinn
`
` I
`
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`
`T
`;
`
`Sybil P. Parker
`
`Editor in Chief
`
`
`
`Euro-Pro v. Acorne
`
`Euro-Pro Exhibit 1014
`Euro-Pro Exhibit 1014
`Euro-Pro v. Acorne
`Page 1 of 3
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`

`
`
`On the cover: Photomtcrograph of crystals of vitamin 3,.
`(Dennis Kunkel, University of Hawaii)
`
`Included in this Dictionary are definitions which have been published previously in the following we“: R B.
`Jordain, Condensed Computer Encyclopedia, Copyright © 1969 by MCGrzW-Hill, Inc. All rights reerved. J-
`Markus, Electronics and Nucleonics Dictionary, 4th ed., Copyright © 1960. 1966, 1978 by McGrawHin’ Inc.
`All rights reserved. J. Quick, Artists’ and Illustrators’ Encyclopedia, Copyrigiit © 1969 by MCGraw-Hl, Inc. All
`rights reserved. Blakiston’s Gould Medical Dictionary, 3d ed., Copyright © 1956, 1972 by McGraw~HL Inc. All
`rights reserved. T. Baumeister and L. S. Marks, eds, Standard Handbook for Mechanical Engineer, 7th ed.,
`Copyright © 1958, 1967 by McGraw-Hill, Inc. All rights reserved.
`
`In addition, material has been drawn from the following references: R. E. Fuschke, Glossary of Mteorology,
`American Meteorological Society, 1959; U.S. Air Force Glossary ofStandarlized Terms, AF Manui “'1, V01-
`1, 1972; Communications-Electronics Terminology, AF Manual 11-1, vol. 3,1970; W. H. Allen, ed.Dictionary
`of Technical Terms for Aerospace Use, 151 ed., National Aeronautics and Space Administration, 965; J. M-
`Gilliland, Solar-Terrestrial Physics: A Glossary ofTerms and Abbreviations, Royal Aircraft Establis‘mem Tech-
`nical Report 67158, 1967; Glossary ofAir Traflic Control Terms, Federal Aviztion Agency; A Glassry ofRange
`Terminology, White Sands Missile Range, New Mexico, National Bureau of Standards, AD 467-24; A DOD
`Glossary ofMapping, Charting and Geodetic Terms, lst ed., Department of Defense, 1967; P. W. TTuSh, comp.
`and ed., A Dictionary ofMining, Mineral, and Related Terms, Bureau of Mines, 1968; Nuclear Terms/1 Glossary,
`2d ed., Atomic Energy Commission; F. Casey, ed., Compilation of Terms in Information SciencesTeChnOlOg)’,
`Federal Council for Science and Technology, 1970; Glossary ofStinfo Terminology, Office ofAerospte Research,
`US. Air Force, 1963; Naval Dictionary ofElectronic, Technical, and Imperatite Terms, Bureau of javal Person—
`nel, 1962', ADP Glossary, Department of the Navy, NAVSO P-3097.
`
`McGRAW-HILL DICTIONARY OF SCIENTIFIC AND TECHNICAL TERMS,
`Fifth Edition
`Copyright © 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill, Inc. All rights reserved. Printd in the United
`States of America. Except as permitted under the United States Copyright Act of 1976, no part oftiis publication
`may be reproduced or distributed in any form or by any means, or stored in a database or retrieval ystem, without
`the prior written permission of the publisher.
`'
`
`234567890
`
`DOW/DOW
`
`9987654
`
`ISBN 0—07-042333-4
`
`Library of Congress Cataloging-in-I’ublication Data
`
`McGraw-Hill dictionary of scientific and technical terms /
`Sybil P. Parker, editor in chief..—5th ed.
`p.
`cm.
`ISBN 0—07—042333-4
`1. Science—Dictionaries.
`1. Parker, Sybil P.
`Q123.M34
`1993
`503—dc20
`
`2. Technologwaictionaries.
`
`93-34772
`CIP
`
`INTERNATIONAL EDITION
`
`Copyright © 1994. Exclusive rights by McGraw—Hill, Inc. for manufacture and export. Thisbook cannot be re-
`exponed from the country to which it is consigned by McGraw-Hill. The International Editiq is not available in
`North America.
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`Of 3
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`When ordering this title, use ISBN 0-07—113584—7.
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`

`

`——-—-—-—————'—*
`
`912
`
`l heat equation
`
`heat at at
`
`[THERMO] A thermodynamic sys—
`work (mechanical energy).
`tem which undergoes a cyclic process during which a positive
`amount of work is done by the system; some heat flows into the
`system and a smaller amount flows out in each cycle.
`{
`'hét
`Ien'jen }
`heat equation [THERMO] A parabolic second—order differ—
`ential equation for the temperature of a substance in a region
`where no heat source exists: at/ar = (k/pc)(62t/6x2 + alt/ayl +
`612/622), where x, y, and z are space coordinates, r is the time,
`t(x,y,z,r) is the temperature, k is the thermal conductivity of the
`body, p is its density, and c is its specific heat; this equation is
`fundamental to the study of heat flow in bodies. Also known
`as Fourier heat equation; heat flow equation.
`[
`‘hét i,kwa-
`zhen ]
`1. The line which circumscribes
`[METEOROL]
`heat equator
`the earth and connects all points of highest mean annual tem-
`perature for their longitudes. 2. The parallel of latitude of 10°N,
`which has the highest mean temperature of any latitude. Also
`known as thermal equator.
`{ ‘hét iikwad-ar ]
`heater
`[ELECTR] An electric heating element for supplying
`heat to an indirectly heated cathode in an electron tube. Also
`known as electron—tube heater.
`[ENG] A contrivance designed
`to give off heat.
`{
`'héd-or ]
`heater oil See heating oil.
`{ ‘héd‘er Ioil }
`heater-treater
`[PETRO ENG] A unit for heating an oil-and-
`water emulsion and then removing the water and gas.
`{
`'héd-
`er ,tréd'er }
`heater-type cathode
`ltip 'kath,od }
`heat exchange [CHEM ENG] A unit operation based on heat
`transfer which functions in the heating and cooling of fluids with
`or without phase change.
`{
`'hét iks,chanj }
`heat exchanger
`[ENG] Any device, such as an automobile
`radiator, that transfers heat from one fluid to another or to the
`environment. Also known as exchanger.
`{
`'het iks,chanj-or }
`heat exhaustion [MED] A heat-exposure syndrome charac-
`terized by weakness. vertigo, headache, nausea, and peripheral
`vascular collapse, usually precipitated by physical exertion in a
`hot environment.
`{
`'hétig,zt')s-ch9n }
`heat filter
`[OPTICS] Special glass in condenser lens systems
`to keep heat from film.
`{
`lhot ,fil~tar }
`heat flow [THERMO] Heat thought of as energy flowing from
`one substance to another; quantitatively, the amount of heat
`transferred in a unit time. Also known as heat transmission.
`{
`'hEt ,flo }
`{ ‘hét [no i,kwa-zhen }
`heat flow equation See heat equation.
`aphic area in which‘hEt
`heat flow province [GEOPHYS] A geogr
`the heat flow and heat production are linearly related.
`{
`iflc‘) Ipray-ans }
`heat flux [THERMO] The amount of heat transferred across a
`surface of unit area in a unit time. Also known as thermal flux.
`[ ‘het .flaks }
`.
`heat gain [ENG] The increase of heat within a given space as
`a result of direct heating by solar radiation and of heat radiated
`by other sources such as lights, equipment, or people.
`{ ‘hEt
`.gfin }
`[ hEth }
`heath See temperate and cold scrub.
`An evergreen heath of
`heather
`[BOT] Calluna vulgaris.
`hed by racemes of small
`northern and alpine regions distinguis
`purple-pink flowers.
`{
`'hegh-er}
`heating chamber
`[ENG] The part of an injection mold in
`which cold plastic feed is changed into a hot melt.
`{
`'héd'in
`,cham-ber }
`[NAV ARCH] A system of piping in the bottom
`heating coils
`of an oil tanker which carries steam to heat high-pour-point
`liquid cargoes to a viscosity suitable for pumping.
`{
`'hed-in
`,koilz }
`heating degree-day [METEOROL] A form of degree-day used
`as an indication of fuel consumption; in United States usage,
`one heating degree—day is given for each degree that the daily
`mean temperature departs below the base of 65°F (where the
`Celsius scale is used, the base is usually 19°C).
`{
`'hed-in di‘gré
`.dfi }
`heating element
`[ELEC] The part of a heating appliance in
`'hed-ir] ,el‘
`which electrical energy is transformed into heat.
`{
`o-ment }
`heating fuel See heating oil
`heating load [crv ENG]
`
`that must be provided to maintain the 16m
`
`Deraiure
`at a given level.
`{
`'héd'in ,lod }
`in
`heating oil
`[MATER] No. 2 fuel oil; used i
`abui
`
`units. Also known as heater oil; heating fugl Omesnc
`Q'
`
`.
`6m
`1
`{ ‘héth e
`heating plant
`[crv ENG] The whole Syst
`‘
`enclosed space. Also known as heatlng s
`for he ‘3
`
`,plant }
`ys‘em.
`3‘}
`
`heating surface
`[ENG] The surface fol. th
`transfer of heat from one medium to anothere abso
`fes }
`'
`{
`heating system See heating plant.
`heating value See heat of Combustion,
`heat insulator
`[MATER] A substance havin
`heat conductivity.
`{
`'hEt ,ins-e,lad-or}
`
`,
`heat island effect
`[METEOROL]
`In urban area
`S W
`.
`.
`.
`.
`.
`.
`1h
`ings, an atmospheric cond1t1on in Which heat
`create a haze dome that prevents warm air from ran
`
`cooled at a normal rate, especially in the abslslng
`We 0
`winds.
`{
`'hét ,i'lend i.fekt}
`heat lamp
`[ELEc] An infrared lamp used f0
`
`farming, for drying paint or ink, for keeping food r broode
`therapeutic and other applications requiring heat w‘ll’tinn, an
`
`some visible light.
`{
`lhot ,lamp }
`0F
`heatlightning [GEOPHYS] Nontechxiically,the1u .
`
`1108“):
`served from ordinary lightning too far aWay for “:11
`thund
`be heard.
`{
`'hEt ,lit'nig ]
`
`heat loss [PHYS] Energy or power transmitted Out of _
`in the form of heat. Also known as heat dissipation“,
`‘
`,lr')s }
`
`[ENG] Any of various instrume .
`heat-loss tIowmeter
`- ms
`determine gas velocities or mass flows from th
`e Coolm
`.
`
`of the flow on an electrlcal sensor such as a thermistor on“
`a second sensor is used to compensate for the tempera“
`
`,[
`'
`the fluid. Also known as thennal-lOSS meter.
`'flo,m6d'er }
`
`'hét [lo }
`{
`heat low See thermal low.
`
`heat of ablation [THERMo] A measure of the effec
`
`capacity of an ablating material, numerically the heatm
`
`input divided by the mass loss rate which results from abl
`{
`'het ev e'bla-shan }
`
`heat oi activation [PHYS CHEM] The increase in'em
`when a substance is transformed from a less active to,
`,
`
`'hét ev ,ak-te'va-sh
`reactive form at constant pressure.
`{
`heat of adsorption [THERMO] The increase in enthalpy
`
`1 mole of a substance is adsorbed upon another at
`
`pressure.
`{
`'hét av ad'sorp-shen ]
`ncrease in en
`
`heat of aggregation [THERMO] The i
`1, is form
`when an aggregate of matter, such as a crysta
`constant pressure.
`[
`'hét av ,ag'ro‘ga‘shen }
`
`Increase in entiml
`heat of association [PHYS CHEM]
`companying the formation of 1 mole of a coordination
`
`pound from its constituent molecules or other particlfiisj'?l
`n Len
`_
`stant pressure.
`{
`'het av 9,s6-sé‘a-shon ]
`
`heat of atomization [PHYS CHEM] The change '1
`accompanying the conversion of 1 mo
`
`compound at 298 K (77°F) and 1 atmosphere
`free atoms.
`[ {hot av ,ad-o-mo'za-shen }
`
`heat of combustion [PHYS CHEM] The amOu
`leased in the oxidation of 1 mole 0
`
`pressure, or constant volume. Also kn
`ing value.
`{ ‘hét av kom'bos'chan }
`
`heat of compression [THERMO] Heat generat
`'in
`compressed.
`{
`'hét 9v kem'presh-en }
`'
`
`heat of condensation [THERMO] The mamas":n
`accompanying the conversion of 1 mole of V3113"0r 1
`r1
`
`{ 'hétQVI an
`constantpressure and temperature.
`
`Increase in enthalpym
`heat oi cooling [THERMO]
`ing of a system at constant pressure, resultmg f‘rhél 9,, I__
`se i
`,
`l
`change such as an allotrOpic transformatlorl-
`
`heat of crystallization [THERMO] The In?rea its or
`when 1 mole of a substance is transformed meflhQn
`
`'hét 9v ,krist'91'9 Z game
`state at constant pressure.
`{
`heat of decomposition [PHYS CHEM] The Chagompo
`
`accompanying the decomposition of 1 mole infimvgi
`
`'hét GV’de' ase in,
`its elements at constant pressure.
`{
`1. The 1““th '
`heat of dilution
`[PHYS CHEM]
`
`accompanying the addition of a specified amou iniegr
`a solution of constant pressure. Also known as“ erith‘tll
`
`dilution; total heat of dilution. 2. The inc
`
`
`
`Page 3 of 3
`Page 3 of 3
`
`See indirectly heated cathode.
`
`{
`
`'hed‘or
`
`
`
`
`
`'héd'ir] ,fy'ul}
`{
`The quantity of heat per unit time
`
`