vallecula vs groove

vallecula and groove both are nouns.

Word	Noun	Adjective	Verb	Adverb
vallecula	Yes	No	No	No
groove	Yes	No	Yes	No

As nouns, vallecula and groove are synonyms defined as:

vallecula and groove: (anatomy) any furrow or channel on a bodily structure or part

vallecula (noun)	groove (noun)
(anatomy) any furrow or channel on a bodily structure or part	a settled and monotonous routine that is hard to escape
	(anatomy) any furrow or channel on a bodily structure or part
	a long narrow furrow cut either by a natural process (such as erosion) or by a tool (as e.g. a groove in a phonograph record)

vallecula (verb)	groove (verb)
	hollow out in the form of a furrow or groove
	make a groove in, or provide with a groove