1
Triplex
mass noun Brit. trademark toughened or laminated safety glass, used especially for car windows〈英, 商标〉（尤指汽车用）三层安全玻璃。
2
- count noun N. Amer. a building divided into three self-contained residences〈北美〉包含三套独立公寓的房屋。
2.1
- a flat on three floors有三层楼的公寓。
3
- Biochemistry a triple-stranded polynucleotide molecule【生化】三股螺旋。
1
- having three parts, in particular有三部分的, 三重的, 尤指：
1.1
- N. Amer. (of a residence) on three floors〈北美〉（住宅）三层（楼）的：
his vast triplex apartment.
他那宽敞的三层复式套房。
1.2
- Biochemistry consisting of three polynucleotide strands linked side by side【生化】由三股螺旋构成的。
verb
be triplexed
- (of electrical equipment or systems) be provided or fitted in triplicate so as to ensure reliability三重安装（为确保可靠而提供或安装三套电气设备或系统）。
词源
early 17th cent. （as an adjective in the sense 'three-fold'）： from Latin, 'threefold', from tri- 'three' + plicare 'to fold'. Current specific senses date from the 1920s.