different between spicule vs spicular

English

From Latin sp?culum.

spicule (plural spicules)

A sharp, needle-like piece.
A tiny glass flake formed during the manufacture of glass vials
(biology) Any of many needle-like crystalline structures that provide skeletal support in marine invertebrates like sponges.
- 1860, Recreative Science (page 110)
  Tear it up, and put a fragment under the microscope, and, wonder of wonders! see the maze of geometric forms exhibited in the bones of the creature; for who can help regarding the spicules as bones, even though a sponge be invertebrate?
A needle-like mating structure found only in male nematodes.
(astronomy) A jet of matter ejected from the photosphere of the sun.
A small spike of flowers.

spicule +? -ar

spicular (comparative more spicular, superlative most spicular)

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