- the outer germ layer in the embryo of a metazoan.
Origin of ectoderm
Related Words for ectodermleather, wool, fur, skin, fleece, shell, hide, pelt, crust, husk, scale, membrane, rind, integument, pellicle, epidermis, felt, ectoderm, pelage, peltry
Examples from the Web for ectoderm
Historical Examples of ectoderm
Metablastic: relating to the ecto- or meta-blast or ectoderm.
Ectoblast: the outer wall of a cell; the ectoderm or epiblast.
The outer is the Ectoderm and the inner is the Endoderm or Hypoblast.The Ethics of Medical Homicide and Mutilation
The ectoderm retains its ciliation only in the sensory organs.
It consists of three layers: ectoderm, endoderm, and mesoderm.The Sea-beach at Ebb-tide
Augusta Foote Arnold
Word Origin and History for ectoderm
- The outermost of the three primary germ layers of an embryo, from which the epidermis, nervous tissue, and sense organs develop.ectoblast
- The outermost of the primary germ layers of an animal embryo. In vertebrates, the ectoderm gives rise to the epidermis and associated tissues (such as hair and sweat glands), enamel of the teeth, sense organs, nervous system, and lining of the nose, mouth, and anus. Compare endoderm mesoderm.