IPA: /ˌmædrəˈpɔːriən/
KK: /mædɹəˈpɔɹiən/
Relating to a specific type of coral known as Madrepora, which is part of the family of stony corals.
The madreporian structures in the reef provide essential habitats for many marine species.
Madreporian is derived from "madrepor" (from Latin *madreporus*, meaning porous or spongy) and the suffix "-ian" (meaning relating to or characterized by). The term refers to organisms, particularly corals, that have a porous structure.
Think of 'madrepor' meaning porous, which helps you remember that 'madreporian' relates to organisms with a spongy or porous structure.
No commonly confused words.