groove vs vallecula

groove and vallecula both are nouns.

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

As nouns, groove and vallecula are synonyms defined as:

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

groove (noun)	vallecula (noun)
a settled and monotonous routine that is hard to escape	(anatomy) any furrow or channel on a bodily structure or part
(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)

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