solarium vs sunroom

solarium and sunroom both are nouns.

Word	Noun	Adjective	Verb	Adverb
solarium	Yes	No	No	No
sunroom	Yes	No	No	No

As nouns, solarium and sunroom are synonyms defined as:

solarium and sunroom: a room enclosed largely with glass and affording exposure to the sun

Other synonyms of solarium include sun lounge, sun parlor, sun parlour, sun porch, sunporch.

solarium (noun)	sunroom (noun)
a room enclosed largely with glass and affording exposure to the sun	a room enclosed largely with glass and affording exposure to the sun