1
- informal 〈非正式〉short for:
1.1
- a quadrangle.QUADRANGLE的简称。
1.2
- quadruplet (in sense 1).QUADRUPLET（义项1）的简称。
1.3
- a quadriceps.QUADRICEPS的简称。
1.4
- a quad bike.QUAD BIKE的简称。
1.5
- quadraphony.QUADRAPHONY的简称。
2
- (in telephony) a group of four insulated conductors twisted together, usually forming two circuits（电话通讯）四芯线组。
- ORIGIN: abbreviation of quadraplex.
3
- a radio aerial in the form of a square or rectangle broken in the middle of one side方形天线。
- ORIGIN: abbreviation of QUADRILATERAL.
4
- a traditional roller skate（传统的）四轮滑冰鞋。
- ORIGIN: quad, with reference to the four wheels.
5
- Printing a small metal block in various sizes, lower than type height, used in letterpress printing for filling up short lines【印刷】（低于活字的）铅块, 空铅。
- ORIGIN: abbreviation of the late 17th-cent. printing term quadrat.