单词 quadran 释义 ▪ I. † quadran, n. (and a.) Obs.Forms: 6 quadron, 6–7 quadrain, 7 quadran, -ren, quadern.[Alteration of quadrant n.2, with dropping of the -t and assimilation to other endings.]1. A square.1591Harington Orl. Fur. vi. lxxi, These orna...