a black, carbonaceous substance produced during incomplete combustion of coal, wood, oil, etc., rising in fine particles and adhering to the sides of the chimney or pipe conveying the smoke: also conveyed in the atmosphere to other locations.
verb (used with object)
to mark, cover, or treat with soot.
finely divided carbon deposited from flames during the incomplete combustion of organic substances such as coal
(transitive) to cover with soot
A black, powdery substance that consists mainly of carbon and is formed through the incomplete combustion of wood, coal, diesel oil, or other materials. Because it absorbs energy from sunlight rather than reflecting it, soot is believed to be a cause of global warming, especially when it settles on snow and ice, reducing their reflectivity. Soot particles in the air are a contributing factor in respiratory diseases.
noun, Plant Pathology. 1. a disease, especially of apples and pears, characterized by sootlike spots or blotches on the fruit, caused by a fungus, Gloeodes pomigena. 2. a disease of clover, characterized by black, crusty blotches on the underside of the leaves, caused by a fungus, Cymadothea trifolii.
noun 1. blue grouse.
noun 1. Plant Pathology. a disease of plants, characterized by a black, sooty growth covering the affected parts, caused by any of several fungi. 2. any fungus causing this disease, as molds of the genera Capnodium, Phragmocapnias, and Scorias.
- Sooty mould
noun 1. a fungal plant disease characterized by a blackish growth covering the surface of leaves, fruits, etc 2. any of various fungi, such as species of Meliola or Capnodium, that cause this disease