Definition of madreporian in US English:

madreporian

adjective

Zoology
rare
  • Madreporarian.

noun

Zoology
rare
  • Madreporarian.

Origin

Late 19th century; earliest use found in American Naturalist. From madrepore + -ian.

Pronunciation

madreporian

/madrɪˈpɔːrɪən/