[ US /ˈdɔɹsəɫ/ ]
[ UK /dˈɔːsə‍l/ ]
  1. belonging to or on or near the back or upper surface of an animal or organ or part
    the dorsal fin is the vertical fin on the back of a fish and certain marine mammals
  2. facing away from the axis of an organ or organism
    the abaxial surface of a leaf is the underside or side facing away from the stem
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How To Use dorsal In A Sentence

  • Beneath the splenium of the corpus callosum, the dentate gyrus becomes flattened and smooth and continues on to the dorsal surface of the corpus callosum as the thin gyrus fasciolaris.
  • Naupli have a cephalic shield or the beginnings of the dorsal carapace, and no segmentation on the trunk.
  • The fins have strong leading rays, which form a row of sharp spines along the dorsal fin.
  • As the water tumbles over the huge boulders forming a great cloak of foam, the dorsal fins of the salmon along their blue/black backs pierce the sudsy water like an emerging submarine.
  • In contrast, a strongly obtuse apical angle is associated with an incurved ventral beak that is appressed to the dorsal umbo, resulting in the delthyrium being partly obscured.
  • They have distinct black markings on the ends of their fins, particularly the first dorsal and caudal fins.
  • They are shockingly gracile and incredibly long-bodied, with a shape that (when seen in dorsal view) has been likened to that of a champagne flute. A 6 ton model, and a baby that puts on 90 kg a day: rorquals part I
  • Hippocampus severnsi is distinguished from congeners in having a combination of: extremely small size (height 13 mm, standard length 15 mm); 12 trunk rings; 27 tail rings; reduced ossification of inferior and ventral trunk ridges; 14 dorsal fin rays; 10 pectoral fin rays; anal fin small or absent; medium length snout which lacks a bulbous tip; raised, angular coronet; single gill opening on midline directly behind coronet supported by raised cleithral bone; scattered tubercles on trunk and tail; predominant colour dark brown (sometimes slightly marbled) with large, bright red patch covering dorsolateral surfaces of trunk rings 1-4; tiny white dots scattered all over; pale posterior section of tail with dark transverse bands. Practical Fishkeeping news (RSS)
  • In addition, the dorsal central column of primary afferent fibers within the spinal cord appears susceptible to the inhibitory effects of hypoxia in rats.
  • When she felt uncomfortable, Claire would glance down at her birthmark on the dorsal area of her left wrist.
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