Definitions for obversion

• Definition
• Anagrams (373)

obversion ob·ver·sion

Spelling: [ob-vur-zhuh n, -shuh n]

IPA: /ɒbˈvɜr ʒən, -ʃən/

Obversion is a 9 letter English word.

You can make 373 anagrams from letters in obversion (beinoorsv).

Definitions for obversion

noun

1. an act or instance of obverting.
2. something that is obverted.
3. Logic. a form of inference in which a negative proposition is obtained from an affirmative, or vice versa, as “None of us is immortal” is obtained by obversion from “All of us are mortal.”.

Origin of obversion

1840-50; Late Latin obversiōn- (stem of obversiō) a turning toward, equivalent to obvers(us) (see obverse) + -iōn- -ion

Examples for obversion

A further process, known as Contraposition or Conversion by Negation, consists of conversion following on obversion.

In this it differs from obversion, Conversion, and Contraposition, each of which stands for one process.