different between actinal vs aclinal

English

From Ancient Greek ?????, ?????- (aktís, aktîn-, “ray”) +? -al. The usage was coined by Louis Agassiz (See quotations below.).

actinal

(zoology) Pertaining to the side or surface around the mouth in an animal that has radial symmetry such as a starfish.
(zoology) Pertaining to the axis of rotational symmetry in radiate animals.
- 1861, John Timbs, Charles W. Vincent, James Mason, The Year-book of Facts in Science and Art, Simpkin, Marshall, and Co., page 214,
  [Professor Agassiz] gives the names of two axes of the animals; that around which the motion of the animal occurs is the actinal axis ...

a- +? clinal

aclinal (comparative more aclinal, superlative most aclinal)

a- +? clinal

aclinal (feminine singular aclinale, masculine plural aclinaux, feminine plural aclinales)

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