abaxial (not comparable)
- (botany, zoology) Of a side that is facing away from the axis or central line, such as the underside of a leaf; or the back of an animal. [Mid 19th century.]
- 1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, New York, N.Y.: Columbia University Press, →ISBN, page 7:
- The lobule margins, furthermore, are arched away from the lobe, with the consequence that (when fully inflated) the abaxial leaf surface forms the interior lining of the lobule.
- Not in the axis. Applied to an embryo placed out of the axis of the seed.
- Portuguese: abaxial