different between undergo vs pyrolyse

English

Etymology

From Middle English undergon, from Old English underg?n (“to undergo, undermine, ruin”), equivalent to under- +? go. Cognate with Dutch ondergaan (“to undergo, perish, sink”), German untergehen (“to perish, sink, undergo”), Swedish undergå (“to undergo, go through”).

Pronunciation

• (General American) IPA^(key): /??nd???o?/
• (Received Pronunciation) IPA^(key): /??nd?????/
• Rhymes: -??
• Hyphenation: un?der?go

Verb

undergo (third-person singular simple present undergoes, present participle undergoing, simple past underwent, past participle undergone)

1. (transitive, obsolete) To go or move under or beneath.
2. (transitive) To experience; to pass through a phase.

   The project is undergoing great changes.

3. (transitive) To suffer or endure; bear with.

   The victim underwent great trauma.

   She had to undergo surgery because of her broken leg.

Synonyms

• (to go or move under):
• (to experience): go through, take, undercome
• (to suffer or endure): brook, put up with; See also Thesaurus:tolerate

Translations

See also

• undergang

Anagrams

• go under, grounde, guerdon, ungored

English

Alternative forms

• pyrolyze (US)

Etymology

pyro- +? -lyse

Verb

pyrolyse (third-person singular simple present pyrolyses, present participle pyrolysing, simple past and past participle pyrolysed)

1. (intransitive, chemistry) To undergo pyrolysis.
2. (transitive, chemistry) To decompose or transform a substance by subjecting it to heat.

Synonyms

• pyrolysize

Related terms

• pyrolysis

French

Noun

pyrolyse f (plural pyrolyses)

1. pyrolysis (decomposition of a material or compound due to heat where there is no oxygen or other reagents)

Verb

pyrolyse

1. first-person singular present indicative of pyrolyser
2. third-person singular present indicative of pyrolyser
3. first-person singular present subjunctive of pyrolyser
4. third-person singular present subjunctive of pyrolyser
5. second-person singular imperative of pyrolyser

Further reading

• “pyrolyse” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).