Co*ni"um (? ∨ ), n. [NL., fr. Gr. hemlock.]

1. Bot.

A genus of biennial, poisonous, white-flowered, umbelliferous plants, bearing ribbed fruit ("seeds") and decompound leaves.

2. Med.

The common hemlock (Conium maculatum, poison hemlock, spotted hemlock, poison parsley), a roadside weed of Europe, Asia, and America, cultivated in the United States for medicinal purpose. It is an active poison. The leaves and fruit are used in medicine.


© Webster 1913.

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