INVERSE
\ɪnvˈɜːs], \ɪnvˈɜːs], \ɪ_n_v_ˈɜː_s]\
Definitions of INVERSE
 2006  WordNet 3.0
 2011  English Dictionary Database
 2010  New Age Dictionary Database
 1913  Webster's Revised Unabridged Dictionary
 1919  The Winston Simplified Dictionary
 1899  The american dictionary of the english language.
 1919  The Concise Standard Dictionary of the English Language
 1894  The Clarendon dictionary
 1914  Nuttall's Standard dictionary of the English language
 1874  Etymological and pronouncing dictionary of the English language
 1790  A Complete Dictionary of the English Language
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something inverted in sequence or character or effect; "when the direct approach failed he tried the inverse"

opposite in nature or effect or relation to another quantity ; "a term is in inverse proportion to another term if it increases (or decreases) as the other decreases (or increases)"
By Princeton University

something inverted in sequence or character or effect; "when the direct approach failed he tried the inverse"

(mathematics) varying in a manner opposite to that of another quantity; "a term is in inverse proportion to another term if it increases (or decreases) as the other decreases (or increases)"
By DataStellar Co., Ltd

Inverted; having a position or mode of attachment the reverse of that which is usual.

Opposite in nature and effect;  said with reference to any two operations, which, when both are performed in succession upon any quantity, reproduce that quantity; as, multiplication is the inverse operation to division. The symbol of an inverse operation is the symbol of the direct operation with 1 as an index. Thus sin1 x means the arc whose sine is x.

That which is inverse.

Opposite in order, relation, or effect; reversed; inverted; reciprocal;  opposed to direct.
By Oddity Software

Inverted; having a position or mode of attachment the reverse of that which is usual.

That which is inverse.

Opposite in order, relation, or effect; reversed; inverted; reciprocal;  opposed to direct.

Opposite in nature and effect;  said with reference to any two operations, which, when both are performed in succession upon any quantity, reproduce that quantity; as, multiplication is the inverse operation to division.
By Noah Webster.
By William Dodge Lewis, Edgar Arthur Singer
By Daniel Lyons
By James Champlin Fernald
By William Hand Browne, Samuel Stehman Haldeman

Inverted; reciprocal. Inverse ratio, the ratio of the reciprocals of two quantities. Inverse proportion, an equality between a direct ratio and an inverse ratio; the rule of three or proportion, applied in a reverse or contrary order. See Invert.
By Nuttall, P.Austin.

Placed in contrary order; opposed to direct; in bot., having a position or mode of attachment the reverse of what is usual.
By Stormonth, James, Phelp, P. H.
By Thomas Sheridan