/ Dictionary / Index W Wolf number: Meaning and Definition of Find definitions for: Wolf' num"ber Pronunciation: (woolf Fr. vôlf&hasp), [key] — Astron. Astron. a number indicating the degree of sunspot activity on the sun as a factor of observer idiosyncrasies, the number of sunspot groups, and the number of individual sunspots. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. wolf note wolf pack 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