spinuleEtymologyAnglicized form of Late Latin spīnula, diminutive of Latin spīna (“a spine”). Compare French spinule.spinule means A minute spine or thorn. Lexicurio rates it Sui generis — a strength score of 87 out of 100.nounA minute spine or thorn.“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”