English Explanatory Dictionary

peristome

English dictionary entry

Meanings

noun
  1. One or two rings of tooth-like appendages surrounding the opening of the capsule of many mosses.
  2. The parts of or surrounding the mouths of numerous invertebrates.
  3. The lip, or edge of the aperture, of a spiral shell.

Word forms

peristome peristomes peristoma peristomium

Etymology

From peri- + -stome.

Related words

arthrodontous

Derived words

peristomal peristomate peristomial
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