six-year molar

noun
\ ˌsiks-ˌyi(ə)r- How to pronounce six-year molar (audio) \

Medical Definition of six-year molar

: one of the first permanent molar teeth of which there are four including one on each side of the upper and lower jaws and which erupt at about six years of age

called also sixth-year molar

— compare twelve-year molar

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