mesoderm
nounEtymology From meso- + -derm.
1
Embryology, Medicine, Sciences One of the three tissue layers in the embryo of a metazoan animal, which will produce, through development, many internal organs of the adult, e.g. muscles, spine and the circulatory system.
- Derived terms
- endomesoderm, mesendoderm, mesodermal, mesodermic, mesodermless