perimeter

[ puh-rim-i-ter ]
/ pəˈrɪm ɪ tər /

noun

the border or outer boundary of a two-dimensional figure.
the length of such a boundary.
a line bounding or marking off an area.
the outermost limits.
Military. a fortified boundary that protects a troop position.
Ophthalmology. an instrument for determining the peripheral field of vision.

Origin of perimeter

1585–95; < French périmètre < Latin perimetros (feminine) < Greek perímetron (neuter). See peri-, -meter

OTHER WORDS FROM perimeter

pe·rim·e·ter·less, adjective pe·rim·e·tral, per·i·met·ric [per-uh-me-trik] /ˌpɛr əˈmɛ trɪk/, per·i·met·ri·cal, adjective per·i·met·ri·cal·ly, adverb pe·rim·e·try, noun

WORDS THAT MAY BE CONFUSED WITH perimeter

parameter perimeter

Words nearby perimeter

perilymphatic, perilymphatic duct, perilymphatic space, perimeningitis, perimenopause, perimeter, perimetric, perimetritis, perimetrium, perimetry, perimorph

British Dictionary definitions for perimetry

perimeter
/ (pəˈrɪmɪtə) /

noun

maths
  1. the curve or line enclosing a plane area
  2. the length of this curve or line
  1. any boundary around something, such as a field
  2. (as modifier)a perimeter fence; a perimeter patrol
a medical instrument for measuring the limits of the field of vision

Derived forms of perimeter

perimetric (ˌpɛrɪˈmɛtrɪk) or perimetrical, adjective perimetrically, adverb perimetry, noun

Word Origin for perimeter

C16: from French périmètre, from Latin perimetros; see peri-, -meter

Medical definitions for perimetry (1 of 2)

perimetry
[ pə-rĭm′ĭ-trē ]

n.

The determination of the limits of the visual field.

Medical definitions for perimetry (2 of 2)

perimeter
[ pə-rĭm′ĭ-tər ]

n.

The outer limits of an area; circumference.
An instrument used to measure field of vision.

Scientific definitions for perimetry

perimeter
[ pə-rĭm′ĭ-tər ]

The sum of the lengths of the segments that form the sides of a polygon.
The total length of any closed curve, such as the circumference of a circle.