(Lat. culmus, a stalk), in Botany, the stalk or stem of the grasses, usually jointed and hollow, and supporting the leaves, flower, and fruit. See BOTANY.

(Welsh culm), a variety of coal. It is difficult of ignition, but burns for a long time, without flame or smoke, but emitting a disagreeable smell. It does not cake, and it leaves but few ashes. Culm is the Bitumen oxynymatum of Linnæus, and the glanz kohle of Werner. It is otherwise known as anthracite. See COLLERY.