/ Dictionary / Index W Wilson cloud chamber: Meaning and Definition of Find definitions for: Wil'son cloud' cham"ber Pronunciation: [key] — Physics. Physics. SeeAlso called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Wilson Wilson Dam Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language