carminic acid

2 definitions found

carminic acid - Collaborative International Dictionary of English v.0.48 :

  Carmine \Car"mine\, n. [F. carmin (cf. Sp. carmin, It.
     carminio), contr. from LL. carmesinus purple color. See
     Crimson.]
     1. A rich red or crimson color with a shade of purple.
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     2. A beautiful pigment, or a lake, of this color, prepared
        from cochineal, and used in miniature painting.
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     3. (Chem.) The essential coloring principle of cochineal,
        extracted as a purple-red amorphous mass. It is a
        glucoside and possesses acid properties; -- hence called
        also carminic acid.
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     Carmine red (Chem.), a coloring matter obtained from
        carmine as a purple-red substance, and probably allied to
        the phthale["i]ns.
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  Carminic \Car*min"ic\, a.
     Of or pertaining to, or derived from, carmine.
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     Carminic acid. Same as Carmine, 3.
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