D defs.my
Entry 2 senses Webster, 1913

Ventral

/vĕn'-trəl/ · Ven·tral · IPA /ˈvɛntɹəl/
01 a. 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…
  1. 1.
    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.(Anat.)
  2. 2.
    Of or pertaining to that surface of a carpel, petal, etc., which faces toward the center of a flower.(Bot.)
Phrases & compounds
Ventral fins — the posterior pair of fins of a fish. They are often situated beneath the belly, but sometimes beneath the throat.
Ventral segment — See Loop, n., 5.