trimaran

[ trahy-muh-ran ]
/ ˈtraɪ məˌræn /

noun

a vessel similar to a catamaran but having three separate hulls.

Origin of trimaran

First recorded in 1950–55; tri- + (cata)maran

British Dictionary definitions for trimaran

trimaran
/ (ˈtraɪməˌræn) /

noun

a vessel, usually of shallow draught, with two hulls flanking the main hull

Word Origin for trimaran

C20: from tri- + ( cata) maran