noun, plural sub·con·tra·ries. Logic.
one of two propositions that can both be true but cannot both be false.
- subcorneal pustular dermatosis,
- subcostal artery
Origin of subcontrary
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
noun plural -ries
a statement that cannot be false when a given statement is false
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