Definition of "trimaran" [trimaran]

• A fast sailboat with three parallel hulls. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The trimaran is a very forgiving design, which is why it is preferred by so many these days for sea voyaging and island hopping."
• "MacInnes still has a job, helping to maintain BMW Oracle's trimaran, which is a huge and complicated sailing machine, one that requires an estimated 200 to 300 man-hours of work on shore for every hour of sailing."
• "A trimaran is a sailing vessel, distant cousin of a catamaran."