trimaran

[trahy-muh-ran] /ˈtraɪ məˌræn/
noun
1.
a vessel similar to a catamaran but having three separate hulls.
Origin
1950-55; tri- + (cata)maran
Examples from the web for trimaran
  • On board this miniature trimaran are four acoustic transducers.
  • Oracle spared even less expense, devising a paradigm-breaking trimaran with a wing for a sail.
  • Choose a catamaran or trimaran for your day-sailing experience if you are unsure of your party's sea legs.
  • However, certain exterior spaces were identified as being wide enough to accommodate trimaran boats.
British Dictionary definitions for trimaran

trimaran

/ˈtraɪməˌræn/
noun
1.
a vessel, usually of shallow draught, with two hulls flanking the main hull
Word Origin
C20: from tri- + (cata)maran