Het·er·om·er·ous a.
 1. Chem & Crystallog. Unrelated in chemical composition, though similar or indentical in certain other respects; as, borax and augite are homœmorphous, but heteromerous.
 2. Bot. With the parts not corresponding in number.
 3. Zool. (a) Having the femoral artery developed as the principal artery of the leg; -- said of certain birds, as the cotingas and pipras. (b) Having five tarsal joints in the anterior and middle legs, but only four in the posterior pair, as the blister beetles and oil beetles.

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