peristome
noun
peri·stome ˈper-ə-ˌstōm 
1
: the fringe of teeth surrounding the orifice of a moss capsule
2
: the region around the mouth in various invertebrates
peristomial
ˌper-ə-ˈstō-mē-əl
adjective 
Word History
Etymology
New Latin peristoma, from peri- + Greek stoma mouth — more at stomach entry 1
First Known Use
1799, in the meaning defined at sense 1
Medical Definition
peristome
noun
peri·stome ˈper-ə-ˌstōm
: the area surrounding the mouth or cytostome of a protozoan
- absconding
- absconding (with)
- absconding with
- abscondments
- absconds
- absconds (with)
- absconds with
- Absecon Inlet
- abseil
- abseiled
- abseilers
- abseiling
- abseilings
- abseils
- absence
- absence of blade
- absence of mind
- absences
- absent
- absent oneself
- absent over leave
- absent treatment
- absent voter
- absent without leave
- absent-minded