Of, relating to, or characterized by heterogeneous origin or composition; composed of fundamentally different kinds.
From 'heterogene' or Greek roots 'hetero-' and '-geneal' (pertaining to kind/origin), an archaic or rare adjectival form emphasizing diverse origins.
Medieval theorists debated whether the cosmos was heterogeneal—different in substance from top to bottom—until Galileo's telescope proved we're all made of the same atoms whether on Earth or in the heavens!
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