Definition of term 'dorsal' as used in anatomy, biology, medicine, and medicine, with examples of use of the term. Dorsal is used in medical, anatomy, and bi... Definition of term 'dorsal' as used in anatomy, biology, medicine, and medicine, with examples of use of the term. Dorsal is used in medical, anatomy, and biology terminology to refer to where parts of the body are located, as well as sometimes in kinesiology. Dorsal corresponds to the posterior aspect of the hand in humans, opposite the palm (palmar, volar), and to the top of the foot, opposite the sole (plantar). The opposite of dorsal is ventral: