From Longman Dictionary of Contemporary Englishtriplextrip‧lex /ˈtrɪpleks $ ˈtrɪ-, ˈtraɪ-/ noun [countable] American EnglishTB a house containing three separate apartments → duplexTriplexTriplex trademark British English a special type of safety glass used in car windowsOrigin triplex (1600-1700) Latin tri- + -plex “multiplied by”
