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: P- P. P/ P< Pa Pb Pc Pd Pe Pf Ph Pi Pj Pk Pl Pm Pn Po Pp Pr Ps Pt Pu Pv Pw Px Py
peristerite | peristeromorphous | peristeropodous | peristole | peristoma | peristome | peristomial | peristomium | peristrephic | peristylar | peristyle

peristome

 : 
Noun
 : 
per=i=stome

CIDE DICTIONARY

peristomen. [Pref. peri- + Gr. , , mouth.].
  •  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.  [1913 Webster]
  •  The lip, or edge of the aperture, of a spiral shell.  [1913 Webster]

OXFORD DICTIONARY

peristome, n.
1 Bot. a fringe of small teeth around the mouth of a capsule in mosses and certain fungi.
2 Zool. the parts surrounding the mouth of various invertebrates.

Etymology
mod.L peristoma f. PERI- + Gk stoma mouth

For further exploring for "peristome" in Webster Dictionary Online


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