Also found in: Dictionary, Thesaurus, Financial, Encyclopedia.
Related to deciduous tooth: milk tooth, Milk teeth, Temporary teeth
a tooth of the first set of teeth, comprising 20 in all, that erupts between 6-24 months of life.
See primary tooth.
de·cid·u·ous tooth(dĕ-sij'ū-ŭs tūth) [TA]
Any of the 20 teeth that make up the primary dentition, which are shed and replaced by the permanent teeth.Synonym: baby tooth; milk tooth; primary tooth See: illustration
See also: tooth