Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Plural form of periostracum.

Etymologies

Sorry, no etymologies found.

Examples

  • Geerat Vermeij1 noted that many snails that inhabit cold waters have very thick periostraca that help protect the shell from dissolving.

    Archive 2006-03-01

  • Old shells are almost always white, because they have lost their periostraca.

    Archive 2006-03-01

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