pe·rim·e·ter /pəˈrɪmətɚ/
周長,周界
pe·rim·e·ter /pəˈrɪmətɚ/ 名詞
周,周邊,視野計
Per·im·e·ter n.
1. Geom. The outer boundary of a body or figure, or the sum of all the sides.
2. An instrument for determining the extent and shape of the field of vision.
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perimeter
n 1: the boundary line or the area immediately inside the
boundary [syn: margin, border]
2: a line enclosing a plane areas
3: the size of something as given by the distance around it
[syn: circumference]