xanthinine

[ Eng.xanthin; -ine.] Chem.: C4H3N3O2. A yellow powder, prepared by heating ammonium thionurate to 200°. It is slightly ether. Gradually destroyed by exposure to the air. xăn-thăz-a-rin, s. [Pref. xanth-, and English a ( li ) zarin.] Chem.: A yellow coloring matter, prepared by the action of nitric acid on the black residue obtained in preparing pure alizarin. It is slightly soluble in water, soluble in alcohol, ether, and in caustic alkalies. xăn-the-in, subst. [Formed from Gr. xanthos = yellow.] Chem.: Fremy's name for that portion of the yellow coloring matter of flowers which is soluble in water. xănth-ě-lăşma, subst. [Pref. xanth-, and Gr. elasma a metal plate.] Pathol.: The name given by Dr. Erasmus Wilson to a cutaneous disease, consisting of isolated or confluent tubercles varying from the size of a pin's head to that of a pea. Its most frequent seat is around the eyelids. VIPER.] Her.: An imaginary animal; a kind of dragon with wings, but having only two legs, the term in a tion of its body being somewhat serpentine in form. THE twenty-fourth letter of the English alphabet, is a superfluous letter, as it represents no sound which cannot be expre ed by other letters. Thus, when used at the beginning of a word it has precisely the sound of z; when occurring in the middle of a word it usually has the sound of ks , as in axis , taxes, foxes , .; it also has the same sound in some cases when terminating a word, as lax , wax , .; when it terminates a syllable, and more especially an initial syllable, if the syllable following it is open or accented, it frequently has the sound of gz , as in lux ury, exhaust, exalt, exotic , . As an initial it xăn-thi-a, s. [Gr.xanthos=yellow.] Entom.: A genus of Ortho side, with wings form. ing a very inclined roof. The caterpillar feeds on the buds or the catkins of trees. The type is Xanthia cerago , the Sallow-moth (q. v.). xăn-thi-an, a. (See def.] Of or belonging to Xanthus, an ancient town in Asia Minor. xanthian-marbles, s. pl. Cla ic Antiq .: A large collection of marbles of various ages (from B. C. 545 onwards) discovered near Xanthus, in 1838. xăn-thic, adj . [Gr. xanthos =yellow, and Eng. Chem. Derived from or contained in xanthic. suff. -ic.] IMG:content-1065.png:[blocks in formation] IMG:content-1066.png:[blocks in formation] Chem.: A yellow coloring matter extracted from the juice which exudes from incisions made in the bark of I no carpus edulis . xăn-thi-ô-şite, subst. [Formed from xanthos = yellow.] Min: A name given by Adam to an amorphous nickel ore, analysed by Bergemann. Hardne , 40; specific gravity, 4'982; color, sulphur-yellow. Composition: Arsenic acid, 50-5; nickel, 49.5=100, whence the formula 3NiOASO5. Found at Johanngeorgenstadt, Saxony.