Käännettävä sana (suomeksi tai englanniksi):
- Any animal that undergoes development from an embryo stage with three tissue layers, namely the ectoderm, mesoderm, and endoderm. The term applies to all animals except the sponges.
- Any animal that is multicellular.
- Having to do with animals that develop from an embryo with three tissue layers.
- Having to do with animals that are multicellular.