bone ash


noun
  1. a white ash obtained by calcining bones, used as a fertilizer and in the making of bone china.

Origin of bone ash

1
First recorded in 1615–25

Words Nearby bone ash

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How to use bone ash in a sentence

British Dictionary definitions for bone ash

bone ash

noun
  1. the residue obtained when bones are burned in air, consisting mainly of calcium phosphate. It is used as a fertilizer and in the manufacture of bone china

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