Peristome

n.	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.	(Zool.) The lip, or edge of the aperture, of a spiral shell.

Noun	1.	peristome - (botany) fringe of toothlike appendages surrounding the mouth of a moss capsule
	2.	peristome - region around the mouth in various invertebrates

botany, capsule, enation, phytology, plant process