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单词 accelerant
释义

accelerantn.adj.

Brit. /əkˈsɛlərənt/, /əkˈsɛlərn̩t/, U.S. /əkˈsɛlərənt/, /ækˈsɛlərənt/
Origin: Formed within English, by derivation. Etymons: accelerate v., -ant suffix1.
Etymology: < accelerate v.: see -ant suffix1.
Chiefly Science.
A. n.
A thing with an accelerating effect; an accelerator; spec. a substance that increases the rate of combustion of a fire.
ΘΚΠ
the world > movement > rate of motion > [noun] > increasing rate of movement or progress > one who or that which
accelerator1611
accelerant1863
1863 Blackwood's Edinb. Mag. Oct. 420/1 Experiments which seem to involve any hazards to the duration of the liberties existing, though proferred as extensions and accelerants of their action, may be regarded..with..disfavour.
1897 A. Morison Cardiac Failure & its Treatm. iii. 99 Under the circumstances the appropriate agent is a cardiac stimulant which is at the same time an accelerant.
1933 Federal Reporter 2nd Ser. 63 365/1 The doctor testified..that a bad cold would break down the system and act as an accelerant.
1979 Forbes 3 Sept. 94 Arson is not that tough to spot... Such factors as point of origin and the type of accelerant used can tell much about a fire.
2002 Independent 4 Jan. 3/1 An accelerant was tipped across the floor and within minutes an explosion had reduced the building to a shell.
2010 Daily Tel. 10 May 21/4 Both Mr Clegg and the grandees advising him have accepted that virtue is rarely the accelerant of change.
B. adj.
Having an accelerating effect; accelerating.
ΘΚΠ
the world > movement > rate of motion > [adjective] > of or relating to increase in speed
accelerative1666
accelerant1872
1872 tr. L. Figuier Day after Death ix. 110 Also, the augmentation of the sun's bulk by these foreign bodies, would have produced an accelerant motion in the orbits of all the stars [Fr. Ces corps étrangers augmentant sa masse auraient produit dans les orbites de tous les astres en mouvement une accélération].
1951 Proc. Soc. Exper. Biol. & Med. 78 281 Accelerant factors for a transplantable mouse mammary carcinoma of inbred..mice are equally effective whether derived from fresh (unfrozen) or frozen homologous cancerous tissues.
1970 A. Toffler Future Shock xx. 406 In a world of accelerant change, next year is nearer to us than next month was in a more leisurely era.
2002 Waste Managem. 22 608/2 The accelerant effect on setting times can be attributed to the action of chlorides.
This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2021).
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n.adj.1863
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