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Dictionary

Wolf' num"ber

Pronunciation: (woolf; Fr. vôlf), [key] 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 relative sunspot number, sunspot number.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

wolf note

wolf pack

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