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trimaran

American  
[trahy-muh-ran] / ˈtraɪ məˌræn /

noun

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


trimaran British  
/ ˈtraɪməˌræn /

noun

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

"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

Etymology

Origin of trimaran

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

From The Wall Street Journal • Dec. 5, 2025

The sleek autonomous trimaran docked in Halifax, Nova Scotia, on Sunday, after more than five weeks crossing the Atlantic Ocean from England, according to tech company IBM, which helped build it.

From Seattle Times • Jun. 5, 2022

Unlike its wooden predecessor, this vessel is a sleek, high-tech trimaran powered by the sun and steered by artificial intelligence.

From Washington Times • Sep. 16, 2020

In many ways, it was a moment that defined the last five years for Sea Shepherd, the vigilante conservation group to which the trimaran belonged.

From The Guardian • Jun. 5, 2015

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

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