Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Having one valve.

from The Century Dictionary and Cyclopedia

  • Same as univalve.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

uni- +‎ valved

Examples

  • Of the rest, some are bivalved and some univalved; and by ‘bivalves’ I mean such as are enclosed within two shells, and by

    The History of Animals

  • univalved’ such as are enclosed within a single shell, and in these last the fleshy part is exposed, as in the case of the limpet.

    The History of Animals

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