peristome

noun peri·stome \ ˈper-ə-ˌstōm \

Definition of peristome

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


Medical Dictionary

peristome

noun peri·stome \ ˈper-ə-ˌstōm \

medical Definition of peristome

: the area surrounding the mouth or cytostome of a protozoan

peristomial

play \ˌper-ə-ˈstō-mē-əl\ adjective

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