madrepore vs madriporian coral

madrepore and madriporian coral both are nouns.

Word	Noun	Adjective	Verb	Adverb
madrepore	Yes	No	No	No
madriporian coral	Yes	No	No	No

As nouns, madrepore and madriporian coral are synonyms defined as:

madrepore and madriporian coral: corals having calcareous skeletons aggregations of which form reefs and islands

Other synonyms of madrepore include stony coral.

madrepore (noun)	madriporian coral (noun)
corals having calcareous skeletons aggregations of which form reefs and islands	corals having calcareous skeletons aggregations of which form reefs and islands