| waller | <zoology> The wels. Origin: G. Source: Websters Dictionary (01 Mar 1998) |
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| Waller, Augustus | <person> English physiologist, 1816-1870. See: wallerian degeneration, wallerian law. (05 Mar 2000) |
| wallerian | Relating to or described by A.V. Waller. (05 Mar 2000) |
| wallerian degeneration | <medicine> A form of degeneration occurring in nerve fibres as a result of their division; so called from Dr. Waller, who published an account of it in 1850. Source: Websters Dictionary (01 Mar 1998) |
| wallerian law | After section of the posterior root of a spinal nerve between the root ganglion and the spinal cord, the central portion degenerates; after division of the anterior root, the peripheral portion degenerates; the trophic centre of the posterior root is therefore the ganglion, that of the anterior root the spinal cord. (05 Mar 2000) |