madrepore vs stony coral

madrepore and stony coral both are nouns.

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

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

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

Other synonyms of madrepore include madriporian coral.

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