trip ‧ lex /ˈtrɪpleks $ ˈtrɪ-, ˈtraɪ-/ BrE AmE noun [countable]
[ Date: 1600-1700 ; Language: Latin ; Origin: tri- + -plex 'multiplied by' ]
American English a house containing three separate apartments ⇨ duplex
trip ‧ lex /ˈtrɪpleks $ ˈtrɪ-, ˈtraɪ-/ BrE AmE noun [countable]
[ Date: 1600-1700 ; Language: Latin ; Origin: tri- + -plex 'multiplied by' ]
American English a house containing three separate apartments ⇨ duplex
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012