from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The stem of a grass or similar plant.
- n. Waste from anthracite coal mines, consisting of fine coal, coal dust, and dirt.
- n. Carboniferous shale.
- n. Inferior anthracite coal.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. waste coal, used as a poor quality fuel; slack.
- n. anthracite, especially when found in small masses
- n. the stem of a plant, especially of grass or sedge
from the GNU version of the Collaborative International Dictionary of English
- n. The stalk or stem of grain and grasses (including the bamboo), jointed and usually hollow.
- n. Mineral coal that is not bituminous; anthracite, especially when found in small masses.
- n. The waste of the Pennsylvania anthracite mines, consisting of fine coal, dust, etc., and used as fuel.
from The Century Dictionary and Cyclopedia
- n. Coal-dust; slack; refuse of coal.
- n. In mining, a soft or slaty and inferior kind of anthracite, especially that occurring in Devonshire, England.
- n. The name given by some geologists to a series of rocks which occupy the position of the Carboniferous limestone (see carboniferous), but which, instead of being developed in the form of massive calcareous beds, are made up of slates, sandstones, and conglomerates, and occasional beds of coal, usually of inferior quality.
- n. In botany, the jointed and usually hollow stem of grasses.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. stem of plants of the Gramineae
Latin culmus, stalk.
Middle English colme, coal dust, perhaps from Old English col, coal.(American Heritage® Dictionary of the English Language, Fourth Edition)
Perhaps related to coal. Perhaps from Welsh cwlm ("knot or tie"), applied to this species of coal, which is much found in balls or knots in some parts of Wales: compare Old English culme. (Wiktionary)
Borrowed from Latin culmus. (Wiktionary)