noncolored
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Joker (playing card) — The Joker is a special card found in most modern decks of playing cards, or a Mahjong tile in some Mahjong game sets. Appearance The Joker is usually depicted as a court jester. There are usually two Jokers per deck, and both cards often have… … Wikipedia
leuco base — /looh koh/, Chem. a noncolored or slightly colored compound that is produced by reducing a dye and is readily oxidized to regenerate the dye. [1885 90; independent use of LEUCO ] * * * … Universalium
leuco base — noun Etymology: International Scientific Vocabulary leuco + base : a colorless or weakly colored amine that is formed by reduction of a dye (as a triphenylmethane dye) or its carbinol derivative and that on oxidation and treatment with acids… … Useful english dictionary
