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| phlo·gis·ton [ flō jístən ] |
noun |
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| Definition: |
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hypothetical component of combustible substances: a hypothetical element that some early scientists, before the discovery of oxygen, believed to be present in all combustible substances to make them burn
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| [Mid-18th century. < Greek, "inflammable thing" < phlogizein "set on fire" < phlox "flame"] |
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 phlo·gis·tic adjective |
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