aciculum

[ uh-sik-yuh-luh m ]
/ əˈsɪk yə ləm /

noun, plural a·cic·u·lums, a·cic·u·la [uh-sik-yuh-luh] /əˈsɪk yə lə/.

an acicula.
Zoology. one of the slender, sharp stylets embedded in the parapodia of certain annelid worms, as the polychaetes.

Origin of aciculum

alteration of acicula

British Dictionary definitions for aciculum

aciculum
/ (əˈsɪkjʊləm) /

noun plural -lums or -la (-lə)

a needle-like bristle that provides internal support for the appendages (chaetae) of some polychaete worms

Word Origin for aciculum

C19: New Latin; see acicula