parallelogram

名词 parallelogram:

1. a quadrilateral whose opposite sides are both parallel and equal in length

par.al.lel.o.gram

n.（名词）
A four-sided plane figure with opposite sides parallel.
平行四边形：一种有四条边且每两条边对应平行的平面图形

来源：
Late Latin parallôlogrammum
后期拉丁语 parallôlogrammum
from Greek parallôlogrammon [from neuter sing. of] parallôlogrammos [bounded by parallel lines]
源自 希腊语 parallôlogrammon [] 源自parallôlogrammos的中性单数 [由平行线围成的]
parallôlos [parallel] * see parallel
parallôlos [平行的] *参见 parallel
grammô [line] * see gerbh-
grammô [线] *参见 gerbh-