peristome

play
noun peri·stome \ˈper-ə-ˌstōm\

Definition of peristome

  1. 1 :  the fringe of teeth surrounding the orifice of a moss capsule

  2. 2 :  the region around the mouth in various invertebrates

peristomial

play \ˌper-ə-ˈstō-mē-əl\ adjective

Origin and Etymology of peristome

New Latin peristoma, from peri- + Greek stoma mouth — more at stomach


First Known Use: 1799


Medical Dictionary

peristome

play
noun peri·stome \ˈper-ə-ˌstōm\

Medical Definition of peristome

  1. :  the area surrounding the mouth or cytostome of a protozoan

peristomial

\ˌper-ə-ˈstō-mē-əl\play adjective

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