hordeolum vs eye infection

hordeolum and eye infection both are nouns.

Word	Noun	Adjective	Verb	Adverb
hordeolum	Yes	No	No	No
eye infection	Yes	No	No	No

As nouns, hordeolum and eye infection are synonyms defined as:

hordeolum and eye infection: an infection of the sebaceous gland of the eyelid

Other synonyms of hordeolum include sty, stye.

hordeolum (noun)	eye infection (noun)
an infection of the sebaceous gland of the eyelid	an infection of the sebaceous gland of the eyelid