ventral
adjective /ˈventrəl/
/ˈventrəl/
[only before noun] (biology- enlarge imageon or connected with the part of a fish or an animal that is under its body (or that in humans faces forward)
腹的;腹部的;腹侧的 - a fish’s ventral fin
鱼的腹鳍
词源late Middle English: from Latin venter, ventr- ‘belly’ + -al. - a fish’s ventral fin