different between reaction vs homologation

English

Alternative forms

• reäction (rare)

Etymology

Old French reaction, from Latin re?cti?, from the verb reag?, from re- (“again”) + ag? (“to act”); more at re-, action; equivalent to react +? -ion.

Pronunciation

• IPA^(key): /?i?æk??n/
• Rhymes: -æk??n

Noun

reaction (plural reactions)

1. An action or statement in response to a stimulus or other event.

2. (chemistry) A transformation in which one or more substances is converted into another by combination or decomposition.

3. (politics) Reactionary politics; a period in which reactionary thought or politics is resurgent or dominant.
4. (Internet) An icon or emoji appended to a posted message by a user to express their feeling about it.

Synonyms

• reax (journalism jargon)
• rxn (abbreviation)

Derived terms

• Boudouard reaction
• Briggs-Rauscher reaction
• Finkelstein reaction
• overreaction

Related terms

• chain reaction
• mixed reactions
• react
• reactant
• reactionary
• reaction time
• reactor
• reactional

Translations

Anagrams

• actioner, actorine, anoretic, anticore, creation

Interlingua

Noun

reaction (plural reactiones)

1. reaction

Related terms

• reactor
• reager

English

Noun

homologation (countable and uncountable, plural homologations)

1. (organic chemistry) Any reaction that converts a compound into the next member of a homologous series, usually by lengthening a carbon chain
2. (law) Official certification

Translations

French

Pronunciation

Noun

homologation f (plural homologations)

1. (law) homologation