Produced by or arising from the Earth; having an origin in geological rather than biological processes.
From geo- + -genous (from Latin/Greek 'genus' meaning 'born of'). An older, less common variant of 'geogenic,' more frequent in 19th and early 20th-century scientific literature.
The difference between 'geogenic,' 'geogenous,' and 'geogenetic' shows how scientific terminology evolves, with newer terms often replacing older ones—a natural selection process operating in language itself.
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