peristome

per·i·stome

P0197200 (pĕr′ĭ-stōm′)n.1. Botany A fringe of toothlike appendages surrounding the mouth of a moss capsule.2. Zoology The area or parts around the mouth in certain invertebrates.

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per′i·sto′mal (-stō′məl), per′i·sto′mi·al (-stō′mē-əl) adj.

peristome

(ˈpɛrɪˌstəʊm) n1. (Botany) a fringe of pointed teeth surrounding the opening of a moss capsule2. (Zoology) any of various parts surrounding the mouth of invertebrates, such as echinoderms and earthworms, and of protozoans[C18: from New Latin peristoma, from peri- + Greek stoma mouth] ˌperiˈstomal, ˌperiˈstomial adj

per•i•stome

(ˈpɛr əˌstoʊm)

n. 1. Bot. the circle of toothlike appendages surrounding the opening of a moss capsule. 2. Zool. any of various structures or sets of parts that surround or form the walls of a mouth or mouthlike opening. [1790–1800; < New Latin peristoma. See peri-, -stome] per`i•sto′mal, per`i•sto•mat′ic (-stəˈmæt ɪk) per`i•sto′mi•al, adj.

Thesaurus

Noun	1.	peristome - (botany) fringe of toothlike appendages surrounding the mouth of a moss capsulephytology, botany - the branch of biology that studies plantscapsule - a dry dehiscent seed vessel or the spore-containing structure of e.g. mossesplant process, enation - a natural projection or outgrowth from a plant body or organ
	2.	peristome - region around the mouth in various invertebratesinvertebrate - any animal lacking a backbone or notochord; the term is not used as a scientific classificationanatomical structure, bodily structure, body structure, complex body part, structure - a particular complex anatomical part of a living thing; "he has good bone structure"