Jisho

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Noun
1. ash; ashes
Wikipedia definition
2. Ash (analytical chemistry)In analytical chemistry, ashing is the process of mineralization for preconcentration of trace substances prior to chemical analysis. Ash is the name given to all non-aqueous residue that remains after a sample is burned, which consists mostly of metal oxides. Ash content may be listed in nutrition labels, such as for pet food. Ash is one of the components in the proximate analysis of biological materials, consisting mainly of salty, inorganic constituents.
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