I. ˈtriˌpleks, -rīˌp- noun
( -es )
Etymology: Latin, triple
: something (as a building or apartment) that is triplex
II. adjective
Etymology: Latin, from tri- + -plex -fold — more at simple
1. : having three parts or elements : threefold , triple
triplex windows
triplex cable
2. : having three principal operative parts or motions : producing a threefold effect
triplex chain block
triplex pump
— compare duplex
3.
a. : containing three apartments or dwelling units
triplex buildings
b. : having three floors or levels
a triplex apartment
4.
a. : consisting of a middle lined with paper on both sides
triplex paperboard
b. : consisting of three webs of paper laminated with an adhesive (as glue, wax, or asphalt)
a triplex bag
5. : having three doses of a given dominant gene — used of a tetraploid cell or individual