Zool. of or pertaining to the metazoan body structure, except that of cnidarians, with three basic cellular layers, the ectoderm, the endoderm, and the mesoderm
Origin of triploblasticfrom Classical Greek triploos, triple from tri-, tri- + Indo-European an unverified form -plo- (see double) + blast- + -ic
Having body tissues derived from three germ layers, the endoderm, mesoderm, and ectoderm, seen in all multicellular animals except certain invertebrates such as the cnidarians and sponges.
Origin of triploblasticGreek triploos triple ; see pel-2 in Indo-European roots. -blastic
- Exhibiting triploblasty.