stony coral vs madrepore

stony coral and madrepore both are nouns.

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

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

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

Other synonyms of stony coral include madriporian coral.

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