• Webster's Revised Unabridged Dictionary
    • n Bufonite (Paleon) An old name for a fossil consisting of the petrified teeth and palatal bones of fishes belonging to the family of Pycnodonts (thick teeth), whose remains occur in the o├Âlite and chalk formations; toadstone; -- so named from a notion that it was originally formed in the head of a toad.
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Century Dictionary and Cyclopedia
    • n bufonite Toadstone; a fossil consisting of the petrified teeth of Sphærodus, Pycnodus, and other Mesozoic ganoid fishes. It was formerly much esteemed for its imaginary virtues, and was worn in rings; it was thought to originate in the heads of toads.
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Webster's Revised Unabridged Dictionary
L. bufo, toad: cf. F. bufonite,