obvert

POS

Verb (transitive)

HYPHEN

ob=vert

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CIDE DICTIONARY

obvert, v. t. [L. obvertere; ob (see Ob-) + vertere to turn. See Verse.].

To turn toward. [1913 Webster]

"If its base be obverted towards us." [1913 Webster]

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OXFORD DICTIONARY

obvert, v.tr. Logic alter (a proposition) so as to infer another proposition with a contradictory predicate, e.g. no men are immortal to all men are mortal.

Derivative

obversion n.

Etymology

L obvertere obvers- (as OB-, vertere turn)

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