Definitions for: Peristome

[n] region around the mouth in various invertebrates
[n] (botany) fringe of toothlike appendages surrounding the mouth of a moss capsule

Webster (1913) Definition: Per"i*stome, n. [Pref. peri- + Gr. ?, ?, mouth.]
1. (Bot.) The fringe of teeth around the orifice of the
capsule of mosses. It consists of 4, 8, 16, 32, or 64
teeth, and may be either single or double.

2. (Zo["o]l.)
(a) The lip, or edge of the aperture, of a spiral shell.
(b) The membrane surrounding the mouth of an invertebrate
animal.

See Also: anatomical structure, bodily structure, body structure, capsule, complex body part, enation, invertebrate, plant process, structure

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