addition reaction

US /əˈdɪʃ.ən riˈæk.ʃən/
UK /əˈdɪʃ.ən riˈæk.ʃən/
"addition reaction" picture
1.

réaction d'addition

a chemical reaction in which two or more molecules combine to form a larger one, with no other products

:
The hydrogenation of alkenes is a common example of an addition reaction.
L'hydrogénation des alcènes est un exemple courant de réaction d'addition.
In an addition reaction, unsaturated compounds become saturated.
Dans une réaction d'addition, les composés insaturés deviennent saturés.