Library / English Dictionary

    BROWN COAL

    Pronunciation (US): Play  (GB): Play

     I. (noun) 

    Sense 1

    Meaning:

    Intermediate between peat and bituminous coalplay

    Synonyms:

    brown coal; lignite; wood coal

    Classified under:

    Nouns denoting substances

    Hypernyms ("brown coal" is a kind of...):

    coal (fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period)

    humate (material that is high in humic acids)

    Hyponyms (each of the following is a kind of "brown coal"):

    jet (a hard black form of lignite that takes a brilliant polish and is used in jewelry or ornamentation)

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