leuco base: Meaning and Definition of

leu'co base"

Pronunciation: (l'kō), [key]
— Chem. Chem.
  1. a noncolored or slightly colored compound that is produced by reducing a dye and is readily oxidized to regenerate the dye.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.