Definition of pyrophoric in English:

pyrophoric

adjective ˌpʌɪrə(ʊ)ˈfɒrɪkˌpīrōˈfôrik

1Liable to ignite spontaneously on exposure to air.
（遇空气）易燃的；发火的，引火的
several boranes are pyrophoric and toxic
Example sentencesExamples
- In addition to the radioactivity, DU is chemically toxic, pyrophoric and usually spreads aerolisized particles over a large area on impact.
- We have a lot of pyrophoric substances in an organic chemistry lab - things that burst into flame when they encounter normal air.
- It is pyrophoric, generating intense heat on impact, penetrating a tank because of the heavy weight of its metal.
- It is pyrophoric, burning spontaneously on impact, and extremely dense.
1. 1.1 (of an alloy) emitting sparks when scratched or struck.
  （合金）（刮或敲打时）生火花的
  Example sentencesExamples
  The Army and other pyrophoric uranium munitions NRC licensees should admit the quantity of UO3 vapor produced by such weapons.
  Aside from being very dense and pyrophoric, depleted uranium shells also have a nasty tendency to vaporise.
  One of the oldest uses for praseodymium is in the manufacture of misch metal, a pyrophoric metal.

Origin

Mid 19th century: from modern Latin pyrophorus, from Greek purophoros 'fire-bearing', from pur 'fire' + pherein 'to bear'.

Rhymes

aleatoric, allegoric, anaphoric, camphoric, categoric, choric, Doric, euphoric, historic, metaphoric, meteoric, phantasmagoric, phosphoric, semaphoric, sophomoric, theophoric, Warwick, Yorick

Definition of pyrophoric in US English:

pyrophoric

adjectiveˌpīrōˈfôrik

1Liable to ignite spontaneously on exposure to air.
（遇空气）易燃的；发火的，引火的
several boranes are pyrophoric and toxic
Example sentencesExamples
- It is pyrophoric, burning spontaneously on impact, and extremely dense.
- In addition to the radioactivity, DU is chemically toxic, pyrophoric and usually spreads aerolisized particles over a large area on impact.
- We have a lot of pyrophoric substances in an organic chemistry lab - things that burst into flame when they encounter normal air.
- It is pyrophoric, generating intense heat on impact, penetrating a tank because of the heavy weight of its metal.
1. 1.1 (of an alloy) emitting sparks when scratched or struck.
  （合金）（刮或敲打时）生火花的
  Example sentencesExamples
  One of the oldest uses for praseodymium is in the manufacture of misch metal, a pyrophoric metal.
  The Army and other pyrophoric uranium munitions NRC licensees should admit the quantity of UO3 vapor produced by such weapons.
  Aside from being very dense and pyrophoric, depleted uranium shells also have a nasty tendency to vaporise.

Origin

Mid 19th century: from modern Latin pyrophorus, from Greek purophoros ‘fire-bearing’, from pur ‘fire’ + pherein ‘to bear’.

词汇	pyrophoric
释义	Definition of pyrophoric in English: pyrophoric adjective ˌpʌɪrə(ʊ)ˈfɒrɪkˌpīrōˈfôrik 1Liable to ignite spontaneously on exposure to air. （遇空气）易燃的；发火的，引火的 several boranes are pyrophoric and toxic Example sentencesExamples In addition to the radioactivity, DU is chemically toxic, pyrophoric and usually spreads aerolisized particles over a large area on impact. We have a lot of pyrophoric substances in an organic chemistry lab - things that burst into flame when they encounter normal air. It is pyrophoric, generating intense heat on impact, penetrating a tank because of the heavy weight of its metal. It is pyrophoric, burning spontaneously on impact, and extremely dense. 1.1 (of an alloy) emitting sparks when scratched or struck. （合金）（刮或敲打时）生火花的 Example sentencesExamples The Army and other pyrophoric uranium munitions NRC licensees should admit the quantity of UO3 vapor produced by such weapons. Aside from being very dense and pyrophoric, depleted uranium shells also have a nasty tendency to vaporise. One of the oldest uses for praseodymium is in the manufacture of misch metal, a pyrophoric metal. Origin Mid 19th century: from modern Latin pyrophorus, from Greek purophoros 'fire-bearing', from pur 'fire' + pherein 'to bear'. Rhymes aleatoric, allegoric, anaphoric, camphoric, categoric, choric, Doric, euphoric, historic, metaphoric, meteoric, phantasmagoric, phosphoric, semaphoric, sophomoric, theophoric, Warwick, Yorick Definition of pyrophoric in US English: pyrophoric adjectiveˌpīrōˈfôrik 1Liable to ignite spontaneously on exposure to air. （遇空气）易燃的；发火的，引火的 several boranes are pyrophoric and toxic Example sentencesExamples It is pyrophoric, burning spontaneously on impact, and extremely dense. In addition to the radioactivity, DU is chemically toxic, pyrophoric and usually spreads aerolisized particles over a large area on impact. We have a lot of pyrophoric substances in an organic chemistry lab - things that burst into flame when they encounter normal air. It is pyrophoric, generating intense heat on impact, penetrating a tank because of the heavy weight of its metal. 1.1 (of an alloy) emitting sparks when scratched or struck. （合金）（刮或敲打时）生火花的 Example sentencesExamples One of the oldest uses for praseodymium is in the manufacture of misch metal, a pyrophoric metal. The Army and other pyrophoric uranium munitions NRC licensees should admit the quantity of UO3 vapor produced by such weapons. Aside from being very dense and pyrophoric, depleted uranium shells also have a nasty tendency to vaporise. Origin Mid 19th century: from modern Latin pyrophorus, from Greek purophoros ‘fire-bearing’, from pur ‘fire’ + pherein ‘to bear’.
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