Dictionary
a•cic•u•lum
Pronunciation: (u-sik'yu-lum), [key]—
n.,
—pl. -lums, -laPronunciation: (-lu). [key]
1. an acicula.
2. Zool.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.