steatocystoma vs cyst

steatocystoma and cyst both are nouns.

Word	Noun	Adjective	Verb	Adverb
steatocystoma	Yes	No	No	No
cyst	Yes	No	No	No

As nouns, cyst is a hypernym of steatocystoma; that is, cyst is a word with a broader meaning than steatocystoma:

steatocystoma: a common cyst of the skin; filled with fatty matter (sebum) that is secreted by a sebaceous gland that has been blocked
cyst: a closed sac that develops abnormally in some body structure

steatocystoma (noun)	cyst (noun)
a common cyst of the skin; filled with fatty matter (sebum) that is secreted by a sebaceous gland that has been blocked	a small anatomically normal sac or bladderlike structure (especially one containing fluid)
	a closed sac that develops abnormally in some body structure