chalazion vs sebaceous cyst

chalazion and sebaceous cyst both are nouns.

Word	Noun	Adjective	Verb	Adverb
chalazion	Yes	No	No	No
sebaceous cyst	Yes	No	No	No

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

chalazion: a small sebaceous cyst of the eyelid resulting when a Meibomian gland is blocked
sebaceous cyst: a common cyst of the skin; filled with fatty matter (sebum) that is secreted by a sebaceous gland that has been blocked

Other hypernyms of chalazion include pilar cyst, steatocystoma, wen.

chalazion (noun)	sebaceous cyst (noun)
a small sebaceous cyst of the eyelid resulting when a Meibomian gland is blocked	a common cyst of the skin; filled with fatty matter (sebum) that is secreted by a sebaceous gland that has been blocked