medullary vs marrow

medullary is not a noun while marrow is a noun.

Word	Noun	Adjective	Verb	Adverb
medullary	No	Yes	No	No
marrow	Yes	No	No	No

medullary (noun)	marrow (noun)
	the fatty network of connective tissue that fills the cavities of bones
	the choicest or most essential or most vital part of some idea or experience
	large elongated squash with creamy to deep green skins
	very tender and very nutritious tissue from marrowbones
	any of various squash plants grown for their elongated fruit with smooth dark green skin and whitish flesh

medullary (adjective)	marrow (adjective)
of or relating to the medulla of any body part
containing or consisting of or resembling bone marrow
of or relating to the medulla oblongata