/ Dictionary / Index V Van Vleck: Meaning and Definition of Find definitions for: Van Vleck Pronunciation: (van vlek'), [key] 1899–1980, U.S. physicist: Nobel prize 1977. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Van Vechten Vn Vogt Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language