Coal refuse - Wikipedia Coal refuse, also known as coal waste, rock, slag, coal tailings, waste material, rock bank, culm, boney, or gob (garbage of bituminous), is the material left over from coal mining, usually as tailings piles or spoil tips
What does CULM mean? - Definitions. net Culm, in botanical context, originally referred to a stem of any type of plant It is derived from the Latin word for 'stalk' and now specifically refers to the above-ground or aerial stems of grasses and sedges
culm - definition and meaning - Wordnik Variations in the diameter of the shaft (called a culm), in the prominence of the nodes, and in the rate of tapering at the end of the culm all make certain applications difficult
Culm (botany) - Wikipedia A culm is the aerial (above-ground) stem of a grass or sedge It is derived from Latin culmus , meaning "stalk " It originally referred to the stem of any type of plant