speedboating

speed·boat·ing

 (spēd′bō′tĭng)

n.

The act or sport of operating a speedboat.

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speed′boat′er n.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.