n. [ G., fr. blenden to blind, dazzle, deceive, fr. blind blind. So called either in allusion to its dazzling luster; or (Dana) because, though often resembling galena, it yields no lead. Cf. Sphalerite. ] (Min.) (a) A mineral, called also sphalerite, and by miners mock lead, false galena, and black-jack. It is a zinc sulphide, but often contains some iron. Its color is usually yellow, brown, or black, and its luster resinous. (b) A general term for some minerals, chiefly metallic sulphides which have a somewhat brilliant but nonmetallic luster. [ 1913 Webster ]

adj. 1. combined or mixed together so that the constituent parts are indistinguishable. Antonym of unblended. [ Narrower terms: alloyed; emulsified; homogenized ]
Syn. -- mingled, commingled. [ WordNet 1.5 ]

2. homogeneous heterogeneous [ WordNet 1.5 ]

n. One who, or that which, blends; an instrument, as a brush, used in blending. Specifically, an electrical device with a rapidly rotating spindle to which a specially designed container can be attached, so that the contents of the container are agitated by rotating blades at adjustable speeds, permitting various degrees of homogenization of the contents. container are [ 1913 Webster ]