ectoderm – מילון אנגלי-אנגלי
ectoderm
n.
outer layer of skin
Ectoderm
Ectoderm is one of the three primary
germ layers in the very early
embryo. The other two layers are the
mesoderm (middle layer) and
endoderm (most
proximal layer), with the ectoderm as the most exterior (or distal) layer. It emerges and originates from the outer layer of germ cells. The word ectoderm comes from the
Greek ektos meaning "outside", and
derma, meaning "skin."
ectoderm
Noun
1. the outer germ layer that develops into skin and nervous tissue
(synonym) exoderm, ectoblast
(hypernym) germ layer
(hyponym) neural tube
ectoderm (de)
n.
ectoderm, outer layer of skin
Ectoderm
(n.)
The outer layer of the blastoderm; epiblast.
(n.)
The external skin or outer layer of an animal or plant, this being formed in an animal from the epiblast. See Illust. of Blastoderm.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
About
