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Definitions

American Heritage® Dictionary of the English Language, Fourth Edition

  1. n. The fine black particles, chiefly composed of carbon, produced by incomplete combustion of coal, oil, wood, or other fuels.

Century Dictionary and Cyclopedia

  1. n. A black substance formed by combustion, or disengaged from fuel in the process of combustion, rising in fine particles and adhering to the sides of the chimney or pipe conveying the smoke. The soot of coal and that of wood differ very materially in their composition, the former containing more finely divided carbon than the latter. Coal-soot also contains considerable quantities of ammonium sulphate and chlorid. The soot of wood has a peculiar empyreumatic odor and bitter taste. It is very complex in composition, containing potash, soda, lime, and magnesia, combined with both organic and inorganic acids. It has been used to some extent in medicine as a tonic and antispasmodic.
  2. To mark, cover, or treat with soot.
  3. Middle English forms of sweet.

Wiktionary

  1. n. Fine black or dull brown particles of amorphous carbon and tar, produced by the incomplete combustion of coal, oil etc.

GNU Webster's 1913

  1. n. A black substance formed by combustion, or disengaged from fuel in the process of combustion, which rises in fine particles, and adheres to the sides of the chimney or pipe conveying the smoke; strictly, the fine powder, consisting chiefly of carbon, which colors smoke, and which is the result of imperfect combustion. See smoke.
  2. v. To cover or dress with soot; to smut with, or as with, soot.
  3. adj. Sweet.

WordNet 3.0

  1. n. a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink
  2. v. coat with soot

Etymologies

  1. Middle English, from Old English sōt; see sed- in Indo-European roots.

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‘soot’ has been looked up 1522 times, added to 12 lists, and has a Scrabble score of 4.