deciduous tooth vs baby tooth

deciduous tooth and baby tooth both are nouns.

Word	Noun	Adjective	Verb	Adverb
deciduous tooth	Yes	No	No	No
baby tooth	Yes	No	No	No

As nouns, deciduous tooth and baby tooth are synonyms defined as:

deciduous tooth and baby tooth: one of the first temporary teeth of a young mammal (one of 20 in children)

Other synonyms of deciduous tooth include milk tooth, primary tooth.

deciduous tooth (noun)	baby tooth (noun)
one of the first temporary teeth of a young mammal (one of 20 in children)	one of the first temporary teeth of a young mammal (one of 20 in children)