/ Dictionary / Index F fluid mechanics: Meaning and Definition of Find definitions for: flu'id mechan'ics Pronunciation: [key] an applied science dealing with the basic principles of gaseous and liquid matter. Cf. fluid dynamics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fluidize fluid ounce Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language