perimeter
noun[C]
uk/pəˈrɪm.ɪ.tər/us/pəˈrɪm.ə.t̬ɚ/theouteredgeof anareaoflandor theborderaround it:
周边,边缘Protesterscutaholein the perimeterfence.抗议者在周围的栅栏上砍出了一个洞。
Ariverrunsalong onesideof the field's perimeter.一条河沿这片田地的一侧流过。
mathematicsspecialized
thelengthof theouteredgeof ashape
周,周长Edges & extremities of objects
- -rimmed
 - apex
 - apical
 - apices
 - bevel
 - border
 - bottom
 - brow
 - circumference
 - edge
 - extremity
 - foot
 - front
 - palm-fringed
 - peripheral
 - periphery
 - rim
 - rimless
 - tip
 - vertex
 
You can also find related words, phrases, and synonyms in the topics:
Geometry: parts of geometrical shapes