Definition of heteromerous
1 : unrelated in chemical composition —used of homeomorphous substances
2 of a flower : having one or more whorls the number of whose members differs from that of the remaining whorls —opposed to isomerous
3 : having a thallus with one or more layers of algal cells heteromerous lichens —opposed to homoeomerous
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Origin and Etymology of heteromerous
heter- + Greek meros part + English -ous
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