Pronunciation: (span'ur), [key]
1. a person or thing that spans.
2. Also called span'ner wrench". a wrench having a curved head with a hook or pin at one end for engaging notches or holes in collars, certain kinds of nuts, etc. Cf. pin wrench.
3. Chiefly Brit.a wrench, esp. one with fixed jaws.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.