Main Entry: dy·ad

Pronunciation: \ˈdī-ˌad, -əd\

Function: noun

Etymology: Late Latin dyad-, dyas, from Greek, from dyo

Date: 1675

1 : pair; specifically : two individuals (as husband and wife) maintaining a sociologically significant relationship
2 : a meiotic chromosome after separation of the two homologous members of a tetrad
3 : a mathematical operator indicated by writing the symbols of two vectors without a dot or cross between (as AB)

— dy·ad·ic \dī-ˈa-dik\ adjective

— dy·ad·i·cal·ly \-di-k(ə-)lē\ adverb