ventral

adjective

1. toward or on or near the belly (front of a primate or lower surface of a lower animal)

   adj.all

   Examples

   The ventral aspect of the human body.

   The liver is somewhat ventral in position.

   Ventral (or pelvic) fins correspond to the hind limbs of a quadruped.

   Antonyms dorsal

   Source: WordNet 3.0

2. nearest to or facing toward the axis of an organ or organism

   adj.all

   Synonyms adaxial

   Antonyms abaxial dorsal

   Source: WordNet 3.0

3. Of, pertaining to, or situated near, the belly, or ventral side, of an animal or of one of its parts; hemal; abdominal; as, the <i>ventral</i> fin of a fish; the <i>ventral</i> root of a spinal nerve; -- opposed to <i>dorsal</i>.

   adjective

   Source: webster1913