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perihelion
perikaryon
peril
peril point
perilla
perilous
perilune
perilymph
perimeter
perimorph
perimysium
perinatal
perinatology
perinephrium
perineum
perineurium
period
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perimeter

pe·rim·e·ter [ pə rímmitər ] (plural pe·rim·e·ters)


noun 
Definition:
 
1. boundary enclosing area: a boundary that encloses an area

2. outer edge of territory: the outer edge of an area of defended territory

3. mathematics curve enclosing area: a curve enclosing an area on a plane, or the length of such a curve

[Late 16th century. Via Latin< Greek perimetros< peri "around" + metron "measure"]

per·i·met·ric [ pèrrə méttrik ] adjective
per·i·met·ri·cal adjective
per·i·met·ri·cal·ly adverb

Word Usage

See parameter.

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