kōˈnīəm, ˈkōnēəm noun
Etymology: New Latin, from Late Latin, hemlock, from Greek kōneion, perhaps from kōnos cone — more at hone
1.
a. capitalized : a genus of poisonous herbs (family Umbelliferae) having spotted stems, large decompound leaves with lanceolate pinnatifid leaflets, and white flowers
b. -s : any plant of the genus Conium
2. -s : the dried full-grown but unripe fruit of the poison hemlock containing the alkaloids coniine and methyl coniine and used as a narcotic and sedative