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  1. Oxford American Dictionary

    dental formula

    • IPA[ˈden(t)l ˌfôrmyələ]
    • n.
      a formula expressing the number and kinds of teeth possessed by a mammal. A dental formula is usually written in the form of four “fractions,” one for each type of tooth, with the upper and lower lines describing the upper and lower jaws respectively.

    • noun: dental formula, plural noun: dental formulae