1. Having a different chemical composition. 2. Denoting spinal neurons that have processes passing over to the opposite side of the cord. SYN: heteromeral, heteromerous. [hetero- + G. meros, part]
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het·ero·mer·ic .het-ə-rə-'mer-ik adj consisting of more than one kind of structural subunit <\heteromeric proteins>
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het·ero·mer·ic (het″ər-o-merґik) [hetero- + mer-1 + -ic] sending processes through one of the commissures to the white matter of the other side of the spinal cord; said of spinal nerves.Medical dictionary. 2011.