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1640s, from Medieval Latin homogeneus, from Greek homogenes "of the same kind," from homos "same" (see homo- (1)) + genos "kind, gender, race, stock" (see genus). Earlier in this sense was homogeneal (c.1600).
homogeneous ho·mo·ge·ne·ous (hō'mə-jē'nē-əs, -jēn'yəs)adj.
Of the same or similar nature or kind.
Uniform in structure or composition throughout, as of a chemical mixture.