abaxial

The definition of abaxial refers to a position on the opposite side of or away from the axis.

(adjective)

  1. An example of abaxial is the lower part of a leaf that faces away from the plant's stem.
  2. In biology, the dorsal or back fin of a fish is on the abaxial side from the belly.

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See abaxial in Webster's New World College Dictionary

adjective

away from or facing away from the axis: the abaxial surface of a leaf

Origin: ab- + axial

See abaxial in American Heritage Dictionary 4

adjective
Located away from or on the opposite side of the axis, as of an organ or organism.

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