Skin layer

• The middle germ layer that develops into muscle and bone and cartilage and blood and connective tissue

Wiktionary Word definitions in Wiktionary
n. (label en embryology) One of the three tissue layers in the embryo of a metazoan animal. Through embryonic development, it will produce many internal organ of the adult, e.g. muscles, spine and circulatory system.

WordNet Word definitions in WordNet
n. the middle germ layer that develops into muscle and bone and cartilage and blood and connective tissue [syn: mesoblast ]

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1858, from French mésoderme or German Mesoderm , literally "middle skin," coined by German physician Robert Remak (1815-1865) from meso- + Greek derma (see -derm ).

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Mesoderm \Mes"o*derm\, n. [Meso- + Gr. de`rma skin.] (Biol.) The layer of the blastoderm, between the ectoderm and endoderm; mesoblast. See Illust. of Blastoderm and Ectoderm . The middle body layer in some invertebrates. The middle layer of tissue in some ...

Wikipedia Word definitions in Wikipedia
In all bilaterian animals, the mesoderm is one of the three primary germ layers in the very early embryo . The other two layers are the ectoderm (outside layer) and endoderm (inside layer), with the mesoderm as the middle layer between them. The mesoderm ...