/ Dictionary / Index H hydrodynamic: Meaning and Definition of Find definitions for: hy•dro•dy•nam•ic Pronunciation: (hī"drō-dī-nam'ik, -di-), [key] — adj. pertaining to forces in or motions of liquids. of or pertaining to hydrodynamics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hydrodynamic (Thesaurus) HydroDiuril hydrodynamicist Related Content Daily Word Quiz: pugilist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language