MELANOZ (yun. melanosis — siyohshavi, az melano — siyoh, meshavam), meshavam) melanopatiya dar uzvu boftaho hosilshavi va az dah ziyod taqsimshavii pigmenti qahvarangi siyokhtob yo siyohro (az guruhi melaninho) guyand, ki dar pust, pardai shabakavii chashm, pardai magzi cap mavjud ast. Melanoz modarzodi va gairimodarzodi meshavad. Ba namudi avval Melanozi modarzodii pust (melanodermii) mansub ast, ki dar shakli dogi kunjidak 6 kholhoi modarzodii pigmenti zohir megardand. Melanozi gayrimodarzodi beshtar dar natijai tagyiryobii funksiyai gadudhoi sekresiyai daruni (gadudhoi boloi gurda, gipofez, gadudhoi jinsi) inkishof meyobad. Melanozi pust dar natijai bo karbogidridho zahrolud shudani organizm, inchunin dar asri tasiri omilhoi fiziki, mekhaniki yo khimiyavi niz inkishof yofta metavonad.