Meibomian cyst vs chalazion

Meibomian cyst and chalazion both are nouns.

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

As nouns, Meibomian cyst and chalazion are synonyms defined as:

Meibomian cyst and chalazion: a small sebaceous cyst of the eyelid resulting when a Meibomian gland is blocked

Meibomian cyst (noun)	chalazion (noun)
a small sebaceous cyst of the eyelid resulting when a Meibomian gland is blocked	a small sebaceous cyst of the eyelid resulting when a Meibomian gland is blocked