The AI-powered English dictionary
plural spicules
A sharp, needle-like piece. examples
A tiny glass flake formed during the manufacture of glass vials examples
(biology) Any of many needle-like crystalline structures that provide skeletal support in marine invertebrates like sponges. quotations
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?
1860, Recreative Science, page 110
A needle-like mating structure found only in male nematodes. examples
(astronomy) A jet of matter ejected from the photosphere of the sun. examples
A small spike of flowers. examples