Pronunciation: (dôr'sul),[key] —adj. 1. of, pertaining to, or situated at the back, or dorsum.
2. Anat.,Zool. a. situated on or toward the upper side of the body, equivalent to the back, or posterior, in humans.
b. situated on or toward the posterior plane in humans or toward the upper plane in quadrupeds.
3. Bot.pertaining to the surface away from the axis, as of a leaf; abaxial.
4. Phonet.(of a speech sound) articulated with the dorsum of the tongue.