Meaning of DYAD in English

DYAD

noun Etymology: Late Latin ~-, dyas, from Greek, from dyo Date: 1675 pair , a meiotic chromosome after separation of the two homologous members of a tetrad, a mathematical operator indicated by writing the symbols of two vectors without a dot or cross between (as AB), ~ic adjective ~ically adverb

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.