ectoderm
the outer germ layer in the embryo of a metazoan.
Origin of ectoderm
1- Also called ectoblast.
Other words from ectoderm
- ec·to·der·mal, ec·to·der·mic, adjective
- ec·to·der·moi·dal [ek-toh-der-moid-l], /ˌɛk toʊ dərˈmɔɪd l/, adjective
- sub·ec·to·der·mal, adjective
- sub·ec·to·der·mic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
British Dictionary definitions for ectoderm
exoderm
/ (ˈɛktəʊˌdɜːm) /
Derived forms of ectoderm
- ectodermal or ectodermic, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for ectoderm
[ ĕk′tə-dûrm′ ]
The outermost of the primary germ layers of an animal embryo. In vertebrates, the ectoderm gives rise to the epidermis and associated tissues (such as hair and sweat glands), enamel of the teeth, sense organs, nervous system, and lining of the nose, mouth, and anus. Compare endoderm mesoderm.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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