spiculum

noun

spic·​u·​lum

-ləm

plural spicula

-lə

1

: any of various small spicular organs (such as the spines of an echinoderm, the dart of various snails, or a copulatory bristle on a nematode)

2

: spicule

Word History

Etymology

Latin, small sharp organ or part, sting, arrowhead, arrow

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