Ĕc'to-blăst, n.
n. [Gr. ἐκτός, outside, and βλαστός, bud, germ.] (Nat. Hist.) The membrane composing the walls of a cell, as distinguished from the membranes of the mesoblast, the entoblast, and the entosthoblast. Agassiz.
n. [Gr. ἐκτός, outside, and βλαστός, bud, germ.] (Nat. Hist.) The membrane composing the walls of a cell, as distinguished from the membranes of the mesoblast, the entoblast, and the entosthoblast. Agassiz.