‖n. pl. [ NL., fr. Gr. "edrai^os steadfast + 'ofqalmo`s the eye.] (Zoöl.) A group of Crustacea in which the eyes are without stalks; the Arthrostraca. [Written also Edriophthalmata.] [1913 Webster]
a. (Zoöl.) Pertaining to the Edriophthalma. [ 1913 Webster ]