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ECTODERMAL

 - 5 dictionary results

ec⋅to⋅derm

  [ek-tuh-durm]
Use ECTODERMAL in a Sentence
–noun Embryology.
the outer germ layer in the embryo of a metazoan.
Also called ectoblast.

Origin:
1860–65; ecto- + -derm

Related forms:
ec⋅to⋅der⋅mal, ec⋅to⋅der⋅mic, adjective
ec⋅to⋅der⋅moi⋅dal  [ek-toh-der-moid-l] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ec·to·derm   (ěk'tə-dûrm')   
n.  

  1. The outermost of the three primary germ layers of an embryo, from which the epidermis, nervous tissue, and, in vertebrates, sense organs develop.

  2. The outer layer of a diploblastic animal, such as a jellyfish.

ec'to·der'mal, ec'to·der'mic adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: ec·to·derm
Pronunciation: 'ek-t&-"d&rm
Function: noun
1 : the outermost of the three primary germ layers of anembryo
2 : a tissue (as neural tissue) derived from ectoderm —ec·to·der·mal /"ek-t&-'d&r-m&l/ adjective
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

ectoderm ec·to·derm (ěk'tə-dûrm')
n.
The outermost of the three primary germ layers of an embryo, from which the epidermis, nervous tissue, and sense organs develop. Also called ectoblast.

ec'to·der'mal or ec'to·der'mic adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
ectoderm   (ěk'tə-dûrm')  Pronunciation Key 
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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