名词 quad:

1. one of four children born at the same time from the same pregnancy

2. a muscle of the thigh that extends the leg

3. (printing) a block of type without a raised letter; used for spacing between words or sentences

4. a rectangular area surrounded on all sides by buildings

Quaden.奎德quadvt.用空铅填abbr.四边形（=quadrangle)abbr.四组；四胞胎之一（=quadruplet)abbr.四声道的（=quadraphonic）abbr.四头肌（=quadriceps）abbr.空铅；铅块（=quadrat）n.四方院子；四胞胎之一；嵌条；成套的四件东西quadrat size样方大小quadriceptor四簇介体quadiradials四射体quad-speedadj.四倍速的quadrigemina四叠体quadrangularadj.四边形的quadrate bar金属方柱quadrant arm象限仪水准器臂quadravalentadj.四价的quadrijugate([拉], quadrijugatus)四对的