\Ven"tral\, a. [L. ventralis, fr. venter the belly;
perhaps akin to G. wanst: cf. F. ventral.]
1. (Anat.) Of, pertaining to, or situated near, the belly, or
   ventral side, of an animal or of one of its parts; hemal;
   abdominal; as, the ventral fin of a fish; the ventral root
   of a spinal nerve; -- opposed to {dorsal}.
2. (Bot.)
   (a) Of or pertaining to that surface of a carpel, petal,
       etc., which faces toward the center of a flower.
   (b) Of or pertaining to the lower side or surface of a
       creeping moss or other low flowerless plant. Opposed
       to {dorsal}.
{Ventral fins} (Zo["o]l.), the posterior pair of fins of a
   fish. They are often situated beneath the belly, but
   sometimes beneath the throat.
{Ventral segment}. (Acoustics) See {Loop}, n., 5.