名詞 parallelogram:

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

par.al.lel.o.gram

n.（名詞）
A four-sided plane figure with opposite sides parallel.
平行四邊形：一種有四條邊且每?jī)蓷l邊對(duì)應(yīng)平行的平面圖形

來(lái)源：
Late Latin parallôlogrammum
后期拉丁語(yǔ) parallôlogrammum
from Greek parallôlogrammon [from neuter sing. of] parallôlogrammos [bounded by parallel lines]
源自 希臘語(yǔ) parallôlogrammon [] 源自parallôlogrammos的中性單數(shù) [由平行線圍成的]
parallôlos [parallel] * see parallel
parallôlos [平行的] *參見(jiàn) parallel
grammô [line] * see gerbh-
grammô [線] *參見(jiàn) gerbh-