ectoderm

[ ek-tuh-durm ]

/ ˈɛk təˌdɜrm /

SEE SYNONYMS FOR ectoderm ON THESAURUS.COM

noun Embryology.

the outer germ layer in the embryo of a metazoan.

Also called ectoblast.

Origin of ectoderm

First recorded in 1860–65; ecto- + -derm

OTHER WORDS FROM ectoderm

ec·to·der·mal, ec·to·der·mic, adjectiveec·to·der·moi·dal

[ek-toh-der-moid-l], /ˌɛk toʊ dərˈmɔɪd l/, adjectivesub·ec·to·der·mal, adjectivesub·ec·to·der·mic, adjective

Words nearby ectoderm

ectocardia, ectocervix, ectocommensal, ectocornea, ectocrine, ectoderm, ectodermal dysplasia, ectodermosis, ectoenzyme, ectogenesis, ectogenous

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for ectoderm

Ectoderm and entoderm in this region with the intervening mesodermal layer form the cloacal membrane (Fig. 21).
The Anatomy of the Human Peritoneum and Abdominal Cavity|George. S. Huntington
These are three in number, being called respectively the ectoderm, endoderm and The layer theory.
Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3|Various
The mesenchymal tissue between the mesothelium and the ectoderm forms the mass of the skeletal, muscular and vascular systems.
The Anatomy of the Human Peritoneum and Abdominal Cavity|George. S. Huntington
Ectoderm, ek′to-dėrm, n. the external germinal layer of the embryo.
Chambers's Twentieth Century Dictionary (part 2 of 4: E-M)|Various

The two layers of the gastrula may now be spoken of as ectoderm and entoderm.
The Works of Francis Maitland Balfour, Volume 1|Francis Maitland Balfour

British Dictionary definitions for ectoderm

ectoderm

exoderm

/ (ˈɛktəʊˌdɜːm) /

noun

the outer germ layer of an animal embryo, which gives rise to epidermis and nervous tissueSee also mesoderm, endoderm

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

Medical definitions for ectoderm

ectoderm

[ ĕk′tə-dûrm′ ]

n.

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

Other words from ectoderm

ec′to•der′mal null adj.

Scientific definitions for ectoderm

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.

单词	ectoderm
释义	ectoderm [ ek-tuh-durm ] / ˈɛk təˌdɜrm / SEE SYNONYMS FOR ectoderm ON THESAURUS.COM noun Embryology. the outer germ layer in the embryo of a metazoan. Also called ectoblast. Origin of ectoderm First recorded in 1860–65; ecto- + -derm OTHER WORDS FROM ectoderm ec·to·der·mal, ec·to·der·mic, adjectiveec·to·der·moi·dal [ek-toh-der-moid-l], /ˌɛk toʊ dərˈmɔɪd l/, adjectivesub·ec·to·der·mal, adjectivesub·ec·to·der·mic, adjective Words nearby ectoderm ectocardia, ectocervix, ectocommensal, ectocornea, ectocrine, ectoderm, ectodermal dysplasia, ectodermosis, ectoenzyme, ectogenesis, ectogenous Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for ectoderm Ectoderm and entoderm in this region with the intervening mesodermal layer form the cloacal membrane (Fig. 21). The Anatomy of the Human Peritoneum and Abdominal Cavity\|George. S. Huntington These are three in number, being called respectively the ectoderm, endoderm and The layer theory. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3\|Various The mesenchymal tissue between the mesothelium and the ectoderm forms the mass of the skeletal, muscular and vascular systems. The Anatomy of the Human Peritoneum and Abdominal Cavity\|George. S. Huntington Ectoderm, ek′to-dėrm, n. the external germinal layer of the embryo. Chambers's Twentieth Century Dictionary (part 2 of 4: E-M)\|Various The two layers of the gastrula may now be spoken of as ectoderm and entoderm. The Works of Francis Maitland Balfour, Volume 1\|Francis Maitland Balfour British Dictionary definitions for ectoderm ectoderm exoderm / (ˈɛktəʊˌdɜːm) / noun the outer germ layer of an animal embryo, which gives rise to epidermis and nervous tissueSee also mesoderm, endoderm 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 Words related to ectoderm leather, wool, fur, skin, fleece, shell, hide, pelt, crust, husk, scale, membrane, rind, integument, pellicle, epidermis, felt, pelage, peltry, scarfskin Medical definitions for ectoderm ectoderm [ ĕk′tə-dûrm′ ] n. The outermost of the three primary germ layers of an embryo, from which the epidermis, nervous tissue, and sense organs develop.ectoblast Other words from ectoderm ec′to•der′mal null adj. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for ectoderm 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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ectoderm

noun Embryology.

Origin of ectoderm

OTHER WORDS FROM ectoderm

Words nearby ectoderm

Example sentences from the Web for ectoderm

British Dictionary definitions for ectoderm

exoderm

noun

Derived forms of ectoderm

Words related to ectoderm

Medical definitions for ectoderm

n.

Other words from ectoderm

Scientific definitions for ectoderm