ONEIDA Meaning of ONEIDA in English [Onei.da] n, pl Oneida or Oneidas [Oneida oneyote', lit., standing rock] (1666) 1: a member of an American Indian people orig. of New York 2: the Iroquoian language of the Oneida people Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012