Dictionary

ectoderm

noun ec·to·derm \ˈek-tə-ˌdərm\

Definition of ECTODERM

1
:  the outer cellular membrane of a diploblastic animal (as a jellyfish)
2
a :  the outermost of the three primary germ layers of an embryo that is the source of various tissues and structures (as the epidermis, the nervous system, and the eyes and ears)
b :  a tissue (as neural tissue) derived from this germ layer
ec·to·der·mal \ˌek-tə-ˈdər-məl\ adjective

Origin of ECTODERM

International Scientific Vocabulary
First Known Use: 1859

ectoderm

noun ec·to·derm \ˈek-tə-ˌdərm\   (Medical Dictionary)

Medical Definition of ECTODERM

1
:  the outermost of the three primary germ layers of an embryo
2
:  a tissue (as neural tissue) derived from ectoderm
ec·to·der·mal \ˌek-tə-ˈdər-məl\ adjective

Browse

Next Word in the Dictionary: ectodermoidalPrevious Word in the Dictionary: ectocranialAll Words Near: ectoderm
April 18, 2015
wimple Hear it
to veil, ripple, or meander
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears