- Pertaining to the back or any dorsum.
- In veterinary anatomy, pertaining to the back or upper surface of an animal. Often used to indicate the position of one structure relative to another; nearer the back surface of the body.
- Old term meaning thoracic, in a limited sense; dorsal vertebrae.
[Mediev. L. dorsalis, fr. dorsum, back]
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Examples: glitazone, GI cocktail, etc.