Meaning of aciculum

a•cic•u•lum

Pronunciation: (u-sik'yu-lum), [key]
— pl. -lums, -la
  1. an acicula.
  2. one of the slender, sharp stylets embedded in the parapodia of certain annelid worms, as the polychaetes.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.