WordReference Random House Unabridged Dictionary of American English © 2026
co•ni•um
(kō′nē əm),USA pronunciation n.
- Plant Biologythe poison hemlock, Conium maculatum.
- Greek kó̄neion
- Neo-Latin; Late Latin
- 1860–65
'conium' also found in these entries (note: many are not synonyms or translations):