outgasv.

Brit.

/ˌaʊtˈɡas/, U.S.

/ˌaʊtˈɡæs/

Origin: Formed within English, by derivation. Etymons: out- prefix, gas v.¹

Etymology: < out- prefix + gas v.¹

a. transitive. To drive off adsorbed or dissolved gas or vapour from (a substance or object), esp. by heating in a vacuum.

ΘΚΠ

the world > matter > gas > [verb (transitive)] > emit as fumes or vapour > drive off sorbed gas from

outgas1919

1919 Proc. National Acad. Sci. U.S.A. 5 289 The charcoal..was contained in Pyrex glass bulbs which could be outgassed by a diffusion pump.

1965 C. M. Van Atta Vacuum Sci. & Engin. iii. 101 After the gauge tube and elements have been thoroughly outgassed, an opposite effect becomes noticeable.

1995 Mineral. Mag. 59 122 PEEM2 was pre-heated for a longer period and higher temperatures to help outgas the sample.

b. transitive. To release (adsorbed or dissolved gas or vapour).

ΘΚΠ

the world > matter > gas > [verb (transitive)] > emit as fumes or vapour

vapourc1430

fume1563

exhalea1628

vaporatea1640

steam1666

outgas1971

off-gas1979

1971 I. G. Gass et al. Understanding Earth ix. 137/2 Only gradually, as volcanoes continued to outgas volatile products still trapped in the mantle, will a secondary atmosphere and ocean have replaced the primary envelope.

1974 Nature 31 May 438/1 If NH₃ is outgassed from the Martian crust it would be photolysed.

1991 Garbage Mar. 71/3 The fuzzy polyester part..and a backing of polypropylene or jute are stuck together with glue that may outgas smelly volatile organic compounds.

2. intransitive. To give off adsorbed or dissolved gas or vapour. Also: to be released as gas or vapour.

ΘΚΠ

the world > matter > gas > [verb (intransitive)] > emit fumes or vapour

breathec1300

fume?1533

vapour1552

steam1614

vaporate1623

rokea1700

smoke1733

outgas1962

off-gas1979

1962 [see outgassing n. at Derivatives].

1965 C. M. Van Atta Vacuum Sci. & Engin. ix. 365 Untreated metal samples outgas at the rate of about 10⁻⁷ torr liter/sec cm² after 1 hr of vacuum pumping at room temperature.

1985 New Yorker 6 May 60/1 We have an earth that is still outgassing substantially, and we can depend with confidence that methane will be the fuel of the next several centuries.

1992 K. S. Robinson Red Mars (1993) iii. 112 The Stickney impact almost broke this rock in pieces, and it's chondritic, almost twenty percent water, so a lot of the water outgassed on impact.

1998 D. Hecht Skull Session ii. lxvii. 398 Her breath stank, a sharp chemical smell as the flood of epinephrine and other arousal chemicals in her bloodstream outgassed.

Derivatives

outˈgassed adj.

ΘΚΠ

the world > matter > gas > [adjective] > of the nature of fumes or vapour > giving off or given off as sorbed gas

outgassed1921

1921 Proc. National Acad. Sci. U.S.A. 7 115 The coarsely granular sample of the thoroughly outgassed material is weighed and placed in a steel pressure bomb which is then evacuated until all adsorbed gases are removed.

1952 Trans. Faraday Soc. 48 739 The vessel F was ‘protected’ by a series of traps in liquid air, some of which..contained carefully outgassed granulated charcoal.

1991 A. Milne Fate of Dinosaurs (BNC) 25 We can be reasonably sure that the first water vapours were the natural result of condensation of the outgassed products of volcanoes.

outˈgassing n.

ΘΚΠ

the world > matter > gas > [noun] > fumes or vapour > action of being emitted or emitting

exhalation1398

smoking1530

fuminga1535

fumity1572

elevation1605

fumidity1623

avolation1650

fumosity1650

fumidness1727

steaming1819

outgassing1919

off-gassing1979

1919 Proc. National Acad. Sci. U.S.A. 5 289 After outgassing the tubes were immersed in liquid air of definite age and temperature.

1962 F. I. Ordway et al. Basic Astronautics iii. 49 Whatever outgassing that may occur from the surface would expectedly give rise to a more substantial, albeit tenuous, atmosphere.

1971 I. G. Gass et al. Understanding Earth ii. 43/2 This so-called ‘excess’ argon is probably produced by heating and outgassing of ancient, potassium-bearing rocks.

1995 Coloradoan (Fort Collins) 7 May g7/5 The only potential problem with particleboard is outgassing of formaldehyde gas.

This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022).

单词	outgas
释义	outgasv. Brit. /ˌaʊtˈɡas/, U.S. /ˌaʊtˈɡæs/ Origin: Formed within English, by derivation. Etymons: out- prefix, gas v.¹ Etymology: < out- prefix + gas v.¹ 1. a. transitive. To drive off adsorbed or dissolved gas or vapour from (a substance or object), esp. by heating in a vacuum. ΘΚΠ the world > matter > gas > [verb (transitive)] > emit as fumes or vapour > drive off sorbed gas from outgas1919 1919 Proc. National Acad. Sci. U.S.A. 5 289 The charcoal..was contained in Pyrex glass bulbs which could be outgassed by a diffusion pump. 1965 C. M. Van Atta Vacuum Sci. & Engin. iii. 101 After the gauge tube and elements have been thoroughly outgassed, an opposite effect becomes noticeable. 1995 Mineral. Mag. 59 122 PEEM2 was pre-heated for a longer period and higher temperatures to help outgas the sample. b. transitive. To release (adsorbed or dissolved gas or vapour). ΘΚΠ the world > matter > gas > [verb (transitive)] > emit as fumes or vapour vapourc1430 fume1563 exhalea1628 vaporatea1640 steam1666 outgas1971 off-gas1979 1971 I. G. Gass et al. Understanding Earth ix. 137/2 Only gradually, as volcanoes continued to outgas volatile products still trapped in the mantle, will a secondary atmosphere and ocean have replaced the primary envelope. 1974 Nature 31 May 438/1 If NH₃ is outgassed from the Martian crust it would be photolysed. 1991 Garbage Mar. 71/3 The fuzzy polyester part..and a backing of polypropylene or jute are stuck together with glue that may outgas smelly volatile organic compounds. 2. intransitive. To give off adsorbed or dissolved gas or vapour. Also: to be released as gas or vapour. ΘΚΠ the world > matter > gas > [verb (intransitive)] > emit fumes or vapour breathec1300 fume?1533 vapour1552 steam1614 vaporate1623 rokea1700 smoke1733 outgas1962 off-gas1979 1962 [see outgassing n. at Derivatives]. 1965 C. M. Van Atta Vacuum Sci. & Engin. ix. 365 Untreated metal samples outgas at the rate of about 10⁻⁷ torr liter/sec cm² after 1 hr of vacuum pumping at room temperature. 1985 New Yorker 6 May 60/1 We have an earth that is still outgassing substantially, and we can depend with confidence that methane will be the fuel of the next several centuries. 1992 K. S. Robinson Red Mars (1993) iii. 112 The Stickney impact almost broke this rock in pieces, and it's chondritic, almost twenty percent water, so a lot of the water outgassed on impact. 1998 D. Hecht Skull Session ii. lxvii. 398 Her breath stank, a sharp chemical smell as the flood of epinephrine and other arousal chemicals in her bloodstream outgassed. Derivatives outˈgassed adj. ΘΚΠ the world > matter > gas > [adjective] > of the nature of fumes or vapour > giving off or given off as sorbed gas outgassed1921 1921 Proc. National Acad. Sci. U.S.A. 7 115 The coarsely granular sample of the thoroughly outgassed material is weighed and placed in a steel pressure bomb which is then evacuated until all adsorbed gases are removed. 1952 Trans. Faraday Soc. 48 739 The vessel F was ‘protected’ by a series of traps in liquid air, some of which..contained carefully outgassed granulated charcoal. 1991 A. Milne Fate of Dinosaurs (BNC) 25 We can be reasonably sure that the first water vapours were the natural result of condensation of the outgassed products of volcanoes. outˈgassing n. ΘΚΠ the world > matter > gas > [noun] > fumes or vapour > action of being emitted or emitting exhalation1398 smoking1530 fuminga1535 fumity1572 elevation1605 fumidity1623 avolation1650 fumosity1650 fumidness1727 steaming1819 outgassing1919 off-gassing1979 1919 Proc. National Acad. Sci. U.S.A. 5 289 After outgassing the tubes were immersed in liquid air of definite age and temperature. 1962 F. I. Ordway et al. Basic Astronautics iii. 49 Whatever outgassing that may occur from the surface would expectedly give rise to a more substantial, albeit tenuous, atmosphere. 1971 I. G. Gass et al. Understanding Earth ii. 43/2 This so-called ‘excess’ argon is probably produced by heating and outgassing of ancient, potassium-bearing rocks. 1995 Coloradoan (Fort Collins) 7 May g7/5 The only potential problem with particleboard is outgassing of formaldehyde gas. This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022). < v.1919
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