somatic layer


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.

so·mat·ic lay·er

the external layer of the lateral mesoderm of the embryo, lying adjacent to the ectoderm and together with it constituting the somatopleure.

somatic layer

In the embryo, a layer of extraembryonic mesoderm that forms a part of the somatopleure, the outer wall of the coelom.
See also: layer