| dorn | <zoology> A British ray; the thornback. Origin: Cf. G. Dorn thorn, D. Doorn, and G. Dornfisch stickleback. Source: Websters Dictionary (01 Mar 1998) |
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| dornase | An obsolete contraction of deoxyribonuclease. See: streptodornase. (05 Mar 2000) |
| Dorno rays | The ultraviolet ray's with wavelengths below 289 nm; those biologically active. (05 Mar 2000) |
| Dorno, Carl | <person> Swiss climatologist, 1865-1942. See: Dorno rays. (05 Mar 2000) |