phellem vs cork

phellem and cork both are nouns.

Word	Noun	Adjective	Verb	Adverb
phellem	Yes	No	No	No
cork	Yes	No	Yes	No

As nouns, phellem and cork are synonyms defined as:

phellem and cork: (botany) outer tissue of bark; a protective layer of dead cells

phellem (noun)	cork (noun)
(botany) outer tissue of bark; a protective layer of dead cells	the plug in the mouth of a bottle (especially a wine bottle)
	a small float usually made of cork; attached to a fishing line
	outer bark of the cork oak; used for stoppers for bottles etc.
	(botany) outer tissue of bark; a protective layer of dead cells

phellem (verb)	cork (verb)
	stuff with cork
	close a bottle with a cork