coarctation vs biological science

coarctation and biological science both are nouns.

Word	Noun	Adjective	Verb	Adverb
coarctation	Yes	No	No	No
biological science	Yes	No	No	No

coarctation (noun)	biological science (noun)
(biology) a narrowing or constriction of a vessel or canal; especially a congenital narrowing of the aorta	the science that studies living organisms
tight or narrow compression