WordReference Random House Unabridged Dictionary of American English © 2026
a•cic•u•lum
(ə sik′yə ləm),USA pronunciation n., pl. -lums, -la (-lə).USA pronunciation
- an acicula.
- Zoologyone of the slender, sharp stylets embedded in the parapodia of certain annelid worms, as the polychaetes.
- alteration of acicula
'aciculum' also found in these entries (note: many are not synonyms or translations):