# Subcontrary

## Definitions

• Webster's Revised Unabridged Dictionary
• n Subcontrary (Logic) A subcontrary proposition; a proposition inferior or contrary in a lower degree.
• Subcontrary Contrary in an inferior degree.
• Subcontrary (Logic) Denoting the relation of opposition between the particular affirmative and particular negative. Of these both may be true and only one can be false.
• Subcontrary (Geom) Having, or being in, a contrary order; -- said of a section of an oblique cone having a circular base made by a plane not parallel to the base, but so inclined to the axis that the section is a circle; applied also to two similar triangles when so placed as to have a common angle at the vertex, the opposite sides not being parallel.
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Century Dictionary and Cyclopedia
• subcontrary Contrary in an inferior degree. In geometry, it denotes the relative position of two similar triangles of which one of the pairs of homologous angles coincide while the including sides are interchanged. Thus, in the cut the triangles ACB, ECD are subcontrary.
• n subcontrary In logic, a subcontrary proposition.
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Chambers's Twentieth Century Dictionary
• adj Subcontrary sub-kon′tra-ri contrary in an inferior degree: :
• n Subcontrary a subcontrary proposition
• adj Subcontrary sub-kon′tra-ri (geom.) said of a section of an oblique cone on a circular base, which section is itself a circle
• adj Subcontrary sub-kon′tra-ri (logic) denoting the opposition of two subalternate propositions
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## Usage

### In literature:

Two subcontrary propositions hold of the young of any animal.
"Text Book of Biology, Part 1: Vertebrata" by H. G. Wells
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