obversion

noun
ob·​ver·​sion | \ äbˈvərzhən, -və̄zh-, -vəizh- also -shən\
plural -s

Definition of obversion

logic
: the operation of immediate inference that gives the obverse

History and Etymology for obversion

Late Latin obversion-, obversio, from obversus (past participle of obvertere) + -ion-, -io -ion

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