ventral(a = adj.all) adaxial - nearest to or facing toward the axis of an organ or organism; "the upper side of a leaf is known as the adaxial surface"
ventral, a. [L. ventralis, fr. venter the belly; perhaps akin to G. wanst: cf. F. ventral.].
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. [1913 Webster]
Of or pertaining to that surface of a carpel, petal, etc., which faces toward the center of a flower. [1913 Webster]
Ventral fins(Zoöl.), the posterior pair of fins of a fish. They are often situated beneath the belly, but sometimes beneath the throat. --