1. (n.) The name of several poisonous umbelliferous herbs having finely cut leaves and small white flowers, as the Cicuta maculata, bulbifera, and virosa, and the Conium maculatum. See Conium.

2. (n.) An evergreen tree common in North America (Abies, / Tsuga, Canadensis); hemlock spruce.

3. (n.) The wood or timber of the hemlock tree.

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