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soot

noun [U]
 
 
/sʊt/

Definition

a black powder composed mainly of carbon, produced when coal, wood, etc. is burned: It can be dangerous to let too much soot accumulate inside a chimney.Products of fire sooty
 
 
/ˈsʊt.i/ US  /ˈsʊt̬-/ adjective
Products of fire
(Definition of soot noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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