ylide

Etymology
From the resonance structure between the covalent form (, where the carbanion exists as a methylidenyl group) and the ionic form (, as in ).

Noun

 * 1)  Any organic compound in which two adjacent atoms are connected by both a covalent and an ionic bond; normally written X+–Y−

Derived terms

 * / ammonium ylide

Translations

 * Finnish: ylidi
 * French: ylure
 * Polish: ylid
 * Spanish: iluro