Dictionary Definition
ectoderm n : the outer germ layer that develops
into skin and nervous tissue [syn: exoderm, ectoblast]
User Contributed Dictionary
English
Noun
- One of the three tissue layers in the embryo of a metazoan animal. Through development, it will produce the epidermis (skin) and nervous system of the adult.
Extensive Definition
The ectoderm is the start of a tissue that covers
the body surfaces. It emerges first and forms from the outermost of
the germ
layers.
Generally speaking, the ectoderm differentiates
to form the Nervous
system, Epidermis, and
the outer part of integument.
In vertebrates, the ectoderm has
three parts: external
ectoderm (also known as surface
ectoderm), the neural
crest, and neural tube.
The latter two are known as neuroectoderm.
ectoderm in Czech: Ektoderm
ectoderm in German: Ektoderm
ectoderm in Spanish: Ectodermo
ectoderm in Esperanto: Ektodermo
ectoderm in French: Ectoderme
ectoderm in Italian: Ectoderma
ectoderm in Hebrew: שכבת נבט
ectoderm in Dutch: Ectoderm
ectoderm in Norwegian: Ektoderm
ectoderm in Polish: Ektoderma
ectoderm in Portuguese: Ectoderme
ectoderm in Romanian: Ectoderm
ectoderm in Russian: Эктодерма
ectoderm in Slovak: Ektoderma
ectoderm in Serbian: Ектодерм
ectoderm in Finnish: Ektodermi
ectoderm in Swedish: Ektoderm
ectoderm in Turkish: Ektoderm
ectoderm in Ukrainian: Ектодерма
ectoderm in Chinese: 外胚层