Library / English Dictionary

    SILICON DIOXIDE

    Pronunciation (US): Play  (GB): Play

     I. (noun) 

    Sense 1

    Meaning:

    A white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelieriteplay

    Synonyms:

    silica; silicon dioxide; silicon oxide

    Classified under:

    Nouns denoting substances

    Hypernyms ("silicon dioxide" is a kind of...):

    oxide (any compound of oxygen with another element or a radical)

    Hyponyms (each of the following is a kind of "silicon dioxide"):

    chert (variety of silica containing microcrystalline quartz)

    flint (a hard kind of stone; a form of silica more opaque than chalcedony)

    silex (a pure form of finely ground silica)

    Holonyms ("silicon dioxide" is a substance of...):

    cristobalite (a white mineral consisting of silica; found in volcanic rocks)

    quartz (a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities)

    crystal; lechatelierite; quartz; quartz glass; vitreous silica (colorless glass made of almost pure silica)

    tridymite (a mineral form of silica)

    Credits


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