different between spinule vs pinule

English

Borrowed from Late Latin spinula, diminutive of Latin spina (“a spine”). Compare French spinule.

spinule (plural spinules)

A minute spine.
- c. 1852, James Dwight Dana, Crustacaea
  Alongside of the pairs, there is often another smaller spinule, on one side or both, sometimes a second; and rarely, there are scattered spinules upon the surface between

Lupiens, line ups, line-ups, lines up, lineups, lupines, pinules, unpiles, up lines, up-lines, uplines

spinule m

Compare pinnule.

pinule (plural pinules)

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