peristome definition

  • noun:
    • Botany A fringe of toothlike appendages surrounding the lips of a moss pill.
    • Zoology The area or components across the mouth in some invertebrates.
    • a couple of bands of tooth-like appendages surrounding the orifice associated with the capsule of numerous mosses.
    • The parts of or surrounding the mouths of several invertebrates.
    • The lip, or edge of the aperture, of a spiral layer.
    • The edge of teeth across the orifice regarding the capsule of mosses. It includes 4, 8, 16, 32, or 64 teeth, and can even be either solitary or dual.
    • The lip, or side of the aperture, of a spiral layer.
    • The membrane layer surrounding the lips of an invertebrate pet.
    • In botany, the ring or edge of fragile hairlike appendages that is seen on the rim or mouth of the pill of a moss as soon as the operculum is removed.
    • In zoology, mouth-parts in general; the structures or set of components which surround the cavity of lips or oral opening and constitute its walls, framework, or skeleton: used mainly of lower animals, as echinoderms, which have circular or radiate mouth-parts.
    • (botany) fringe of toothlike appendages surrounding the mouth of a moss capsule
    • region across the mouth in various invertebrates

Related Sources

  • Sentence for "peristome"
    • The peristome is short and stretches…
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  • Hypernym for "peristome"
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