trimaran

American  

[trahy-muh-ran] / ˈtraɪ məˌræn /

noun

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

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trimaran British  

/ ˈtraɪməˌræn /

noun

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

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Etymology

Origin of trimaran

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

Example Sentences

Another competitor was a tech whiz who packed his plywood trimaran with electronic gizmos.

From The Wall Street Journal • Dec. 5, 2025

A Mexican Navy search and rescue team discovered a vessel, later identified as Mr. Lawson’s trimaran, the Defiant, about 410 miles south of Acapulco, Mexico, on Thursday.

From New York Times • Jul. 31, 2023

In his 12-meter Olympus Photo trimaran, Birch pipped Frenchman Michel Malinovsky’s bigger, more powerful monohull to the line.

From Seattle Times • Oct. 26, 2022

Also Monday, the trimaran Maserati reported it collided with a floating object while sailing at 23 to 24 knots, damaging the bow of the port hull and the wing on the rudder.

From Washington Times • Jul. 15, 2019

Nailer was running a message to the Ladee Bar from the first officer of the Gossamer, a sleek trimaran with fixed wind-wing sails and an impressive Buckell cannon on its foredeck, when everything went wrong.

From "Ship Breaker" by Paolo Bacigalupi