Friday, October 28, 2011

Word of the Day: Perimeter

10:41 AM  American Book Company  

Happy Friday! The weekend is almost upon us. The word of the day is

- Perimeter -

pronounced [puh-rim-i-ter]

noun
1. the border or outer boundary of a two-dimensional figure.

2. the length of such a boundary.

3. a line bounding or marking off an area.

4. the outermost limits.

5. Military. a fortified boundary that protects a troop position.

6. Ophthalmology. an instrument for determining the peripheral field of vision.

Origin
1592, "line around a figure or surface," from L. perimetros, from Gk. perimetros "circumference," from peri- "around" + metron "measure" (see meter (2)). Military sense of "boundary of a defended position" is attested from 1943.

Related Words
border, margin, circumference

Can Be Confused With
parameter

http://dictionary.reference.com/browse/perimeter

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