leuco base

noun Chemistry.
  1. a noncolored or slightly colored compound that is produced by reducing a dye and is readily oxidized to regenerate the dye.

Origin of leuco base

First recorded in 1885–90; independent use of leuco-
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British Dictionary definitions for leuco base

leuco base

  1. a colourless compound formed by reducing a dye so that the original dye can be regenerated by oxidation
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