| 释义 | dor·sal I. \ˈdȯrsəl, ˈdȯ(ə)s-\ adjective
 Etymology: Late Latin dorsalis, from Latin dorsum back + -alis -al
 1.
 a.  : belonging to or situated near or on the back of an animal or of one of its parts — opposed to ventral
 b. chiefly Britain  : thoracic
 c. of echinoderms and coelenterates  : aboral
 d.  : having or forming an elongated ridge suggestive of an animal's back : situated on such a part
 < a dorsal gun turret >
 e.  : placed or worn on a human back
 2. botany
 a.  : abaxial
 b.  : belonging to the upper surface of a creeping dorsiventral structure (as a thallus)
 3.  : articulated with a part of the tongue posterior to the tip; specifically  : articulated with a part of the tongue posterior to that employed in a palatal articulation
 II. noun
 (-s)
 1.  : a dorsally located part; especially  : thoracic vertebra
 2.  : a dorsal sound
 3. [Medieval Latin dorsale, from neuter of Late Latin dorsalis, adjective]  : dossal
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