Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Having multiple valves (in any context)
  • n. A multivalve mollusc

from the GNU version of the Collaborative International Dictionary of English

  • adj. Having many valves.
  • adj. Many-valved; having more than two valves; -- said of certain shells, as the chitons.
  • n. Any mollusk which has a shell composed of more than two pieces.

from The Century Dictionary and Cyclopedia

  • Having many valves. Formerly specifically applied
  • n. A multivalve zoölogical shell.

Etymologies

multi- +‎ valve (Wiktionary)

Examples

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  • 1753 E. CHAMBERS Cycl. Suppl. Suppl. s.v. Pollicipes, They are multivalve flat shells, of a triangular figure, each being composed of several laminæ.

    July 8, 2008