形容詞 rectangular:

1. having four right angles
2. having a set of mutually perpendicular axes; meeting at right angles
   同義詞：orthogonal

1. A piece of furniture for reclining and sleeping, typically consisting of a flat, rectangular frame and a mattress resting on springs.
   床一件為躺靠和睡覺(jué)用的家具，典型的由一個(gè)平的，矩形的柜架和放在彈簧上的墊子組成
2. A rolling mill is used to form the material into various form such as round rod, square or rectangular bar.
   人們使用軋機(jī)把材料加工成各種形狀，如圓棒材、方棒材和矩形棒材。
3. An orderly arrangement of data, especially one in which the data are arranged in columns and rows in an essentially rectangular form.
   表數(shù)據(jù)中的一種有序排列，尤指其中的數(shù)據(jù)按基本上構(gòu)成一個(gè)矩形的豎行和橫行進(jìn)行排列的一張表格
4. I put a rectangular box on the table.
   我把一個(gè)長(zhǎng)方形的盒子放在桌子上。

rec.tan.gu.lar

adj.Abbr. rect.（形容詞）縮寫 rect.
Having the shape of a rectangle.
矩形的：具有矩形形狀的
Having one or more right angles.
成直角的：具有一個(gè)或多個(gè)直角的
Designating a geometric coordinate system with mutually perpendicular axes.
直角坐標(biāo)的：表明是具有相互垂直的軸的幾何坐標(biāo)體系的

【引伸】
rectan.gular.ity
rectan.gularly
adv.（副詞）