hy·​dro·​dy·​nam·​ic | \ ˌhī-drō-dī-ˈna-mik How to pronounce hydrodynamic (audio) \
variants: or less commonly hydrodynamical \ ˌhī-​drō-​dī-​ˈna-​mi-​kəl How to pronounce hydrodynamic (audio) \

Definition of hydrodynamic

: of, relating to, or involving principles of hydrodynamics

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Other Words from hydrodynamic

hydrodynamically \ ˌhī-​drō-​dī-​ˈna-​mi-​k(ə-​)lē How to pronounce hydrodynamic (audio) \ adverb

Did You Know?

Bernoulli's principle, which is basic to the science of hydrodynamics, says that the faster a fluid substance flows, the less outward pressure it exerts. It shows the close relationship between hydrodynamics and aerodynamics (which deals with the movement of air and other gases), since it can partly explain how air will "lift" an airplane by the way it flows over the wings, and how a spoiler helps keep a race car's wheels pressed to the ground as it accelerates. Hydrodynamics is sometimes applied today in studying the surface of the planets and even the stars. As used informally by boaters, hydrodynamic often means "hydrodynamically efficient".

Examples of hydrodynamic in a Sentence

Recent Examples on the Web Catamarans are typically faster than average vessels owing to their use of two small hulls instead of one large one, lessening hydrodynamic resistance and increasing speed. Kyle Mizokami, Popular Mechanics, "Iran Is Quietly Building a Fleet of Missile-Slinging Catamarans," 2 Apr. 2021 The skin was then finished for hydrodynamic smoothness and painted to complete the exterior. David Hambling, Popular Mechanics, "This 3D-Printed Sub Could Be the Future of Undersea Warfare," 20 Dec. 2020 The hydrodynamic hull resembles a womb, a tomb, and a weapon all at once, and operates as a great big metaphor for the fragility and terror of being alive. Kate Knibbs, Wired, "My Year Watching Submarine Movies," 22 Dec. 2020 The skeleton provides the load-bearing structure, and the outer skin provides a smooth, hydrodynamic surface. David Hambling, Popular Mechanics, "This 3D-Printed Sub Could Be the Future of Undersea Warfare," 20 Dec. 2020 The fractal aggregate eventually breaks off from the fragment due to hydrodynamic stress. Chris Ciaccia, Fox News, "Baffling interstellar object 'Oumuamua could be a 'dust bunny'," 10 Sep. 2020 Taxed by the repetitive assault of hydrodynamic pressure, some foundations had collapsed. Jen Schwartz, Scientific American, "Surrendering to Rising Seas," 1 Aug. 2018 As a result, the shape of submarines went from the chunky u-boat types subs to smooth, tuna-like hulls that greatly increased hydrodynamic efficiency. Kyle Mizokami, Popular Mechanics, "60 Years Ago, a Submerged Submarine Circled the Globe for the First Time," 25 Apr. 2020 And in the Bible, Noah sealed his arc with bitumen to make the vessel more hydrodynamic. Adrienne Bernhard, Popular Mechanics, "How the Obscure Science of Rubbing Built the Past and Will Shape the Future," 7 Apr. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hydrodynamic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of hydrodynamic

circa 1828, in the meaning defined above

History and Etymology for hydrodynamic

New Latin hydrodynamicus, from hydr- + dynamicus dynamic

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Time Traveler for hydrodynamic

Time Traveler

The first known use of hydrodynamic was circa 1828

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Statistics for hydrodynamic

Last Updated

13 Apr 2021

Cite this Entry

“Hydrodynamic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrodynamic. Accessed 7 May. 2021.

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More Definitions for hydrodynamic


hy·​dro·​dy·​nam·​ic | \ -dī-ˈnam-ik How to pronounce hydrodynamic (audio) \
variants: also hydrodynamical \ -​i-​kəl How to pronounce hydrodynamic (audio) \

Medical Definition of hydrodynamic

: of, relating to, or involving principles of hydrodynamics

Comments on hydrodynamic

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