solarium vs sun parlor

solarium and sun parlor both are nouns.

Word	Noun	Adjective	Verb	Adverb
solarium	Yes	No	No	No
sun parlor	Yes	No	No	No

As nouns, solarium and sun parlor are synonyms defined as:

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

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

solarium (noun)	sun parlor (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