Hypertext Webster Gateway: "ectoblast"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Ectoblast \Ec"to*blast\, n. [Ecto- + Gr. ? bud, germ.] (Biol.)
(a) The outer layer of the blastoderm; the epiblast; the
ectoderm.
(b) The outer envelope of a cell; the cell wall. --Agassiz.
From WordNet (r) 1.7 (wn)
ectoblast
n : the outer germ layer that develops into skin and nervous
tissue [syn: {ectoderm}, {exoderm}]
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