deciduous tooth vs milk tooth

deciduous tooth and milk tooth both are nouns.

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

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

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

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

deciduous tooth (noun)	milk 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)