• Webster's Revised Unabridged Dictionary
    • n Toothshell (Zoöl) Any species of Dentalium and allied genera having a tooth-shaped shell. See Dentalium.
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Century Dictionary and Cyclopedia
    • n toothshell A small marine mollusk, Marinula pellucida, whose shell is used in Australia for necklaces. E. E. Morris, Austral English.
    • n toothshell Any member of the genus Dentalium, family Dentaliidæ, order Solenoconchæ, or class Scaphopoda. The shells are symmetrical, tubular, conical, and generally curved. See the technical terms. Also called toothed shell.
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