Skip navigation.

metazoan - What does it mean?

Definition of 'metazoan'

English

Noun

(en-noun)
  • (zoology) 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.
  • (zoology) Any animal that is multicellular.
  • Adjective

    (-)
  • Having to do with animals that develop from an embryo with three tissue layers.
  • Having to do with animals that are multicellular.
  • Synonyms

    *metazoic