/ Dictionary / Index C cloud physics: Meaning and Definition of Find definitions for: cloud' phys"ics Pronunciation: [key] the science of the physical properties and processes of clouds. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cloud nine cloud rack Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language