Simple Definition of hydroplane

from our Learner's Dictionary

hydroplane

1 of 2

noun

plural hydroplanes
: a boat that is designed to move over the surface of water at very high speeds

hydroplane

2 of 2

verb

hydroplanes; hydroplaned; hydroplaning
US, of a vehicle : to slide on a wet road because a thin layer of water on the road causes the tires to lose contact with it
The car started hydroplaning and skidded off the road.

Cite this Entry

“Hydroplane.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/hydroplane. Accessed 22 Jun. 2026.

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