D defs.my
Entry 1 sense Webster, 1913

Digamma

· Di·gam·ma · IPA /daɪˈɡæmə/
01 n. A letter (�, �) of the Greek alphabet, which early fell into disuse.
  1. 1.
    A letter (�, �) of the Greek alphabet, which early fell into disuse.(Gr. Gram.)