trimaran

[ trahy-muh-ran ]
/ ˈtraɪ məˌræn /

noun

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

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Origin of trimaran

First recorded in 1950–55; tri- + (cata)maran
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012