melanin

[Gr. melania =blackne ; Eng. suff. -in.] "Chem: Pig mentum nigrum . The black pigment of eyegmentumeback powder pigimble in water, alcohol, and ether, slightly soluble in dilute mineral acids, but soluble in potash with evolution of ammonia. měl-a-nip-pě, s. [Greek melanippos =a coal black horse: pref. mel an-, and hippos =a horse.] Entom.: A genus of geometric moths, family Larentide. Melanippe pro cell at a is the Chalk Carpet, M. montan at a the Silver-ground Carpet, and M. fluctuata the Garden Carpet; the second and third are common.