simple past tense and past participle of coupon

plural of Sonogashira coupling

(organic chemistry) A crosscoupling reaction used in organic synthesis to form carbon–carbon bonds. It employs a palladium catalyst as well as copper co-catalyst to form a carbon–carbon bond between a terminal alkyne and an aryl or vinyl halide.

(fandom slang) An object sought by a character in a story in order to achieve some objective, having little purpose beyond advancing the plot.

A small village in Warcop parish, Eden district, Cumbria, England (OS grid ref NY7118). / A small village and castle in Northumberland, England (OS grid ref NT9331).

Synonym of argue like a married couple

Synonym of argue like a married couple

Synonym of argue like a married couple

Synonym of argue like a married couple

Synonym of argue like a married couple