Definitions
from The American Heritage® Dictionary of the English Language, 4th Edition
 adj. Reversed in order, nature, or effect.
 adj. Mathematics Of or relating to an inverse or an inverse function.
 adj. Archaic Turned upside down; inverted.
 n. Something that is opposite, as in sequence or character; the reverse.
 n. Mathematics One of a pair of elements in a set whose result under the operation of the set is the identity element, especially:
 n. Mathematics The reciprocal of a designated quantity. Also called multiplicative inverse.
 n. Mathematics The negative of a designated quantity. Also called additive inverse.
from Wiktionary, Creative Commons Attribution/ShareAlike License
 adj. Opposite in effect or nature or order
 adj. reverse, opposite in or order
 adj. Having the properties of an inverse.
 adj. A grammatical number marking that indicates the opposite grammatical number (or numbers) of the default number specification of noun class.
 n. The opposite of a given, due to contrary nature or effect.
 n. The reverse version of a procedure.
 n. The inverse of an element x with respect to a binary operation is an element that when combined with x yields the appropriate identity element.
 n. A statement constructed from the negatives of the premise and conclusion of some other statement: ~p → ~q is the inverse of p → q.
 v. To compute the bearing and distance between two points.
from the GNU version of the Collaborative International Dictionary of English
 adj. Opposite in order, relation, or effect; reversed; inverted; reciprocal;  opposed to
direct .  adj. Inverted; having a position or mode of attachment the reverse of that which is usual.
 adj. 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. The symbol of an inverse operation is the symbol of the direct operation with 1 as an index. Thus sin1 x means the arc or angle whose sine is x.
 n. That which is inverse.
from The Century Dictionary and Cyclopedia
 Turned end for end, or in the opposite direction; having a contrary course or tendency; inverted: opposed to direct.
 In mathematics, opposite in nature and effect: said with reference to any two operations which, when both performed in succession upon the same quantity, leave it unaltered: thus, subtraction is inverse to addition, division to multiplication, extraction of roots to the raising of powers, etc.
 n. An inverted state or condition; a direct opposite; something directly or absolutely contrary to something else: as, the inverse of a proposition.
 In logic, with conclusion as hypothesis and hypothesis as conclusion.
 n. In logic, a proposition made by simply interchanging the hypothesis and conclusion of another, without any restriction.
 n. In mathematics, an inverse point, curve, function, ratio, proportion, etc.
 n. In rougeetnoir, the triangular space in which bets are placed when wagering that the first card dealt for a color will not be the same color as the one that wins the coup: opposed to couleur. See rougeetnoir.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
 n. something inverted in sequence or character or effect
 adj. opposite in nature or effect or relation to another quantity
 adj. reversed (turned backward) in order or nature or effect
Etymologies
Examples

Von Storch et al 2004 and BàÆ'à⻲ger et al 2006 appear to use the term inverse regression in a different sense and we urge that readers exercise some caution in ensuring that they have familiarized themselves with the specific methods of these two articles to ensure that they draw appropriate conclusions from them.

However, since the inverse is also nonaxiomatic, I assume that someone at the âdinner debateâ had taken the opposite viewpoint and this student felt the need to send an email in order to clarify her position (as well as try to win the debate).
The Volokh Conspiracy » 1. Science, Faith, and Not Ruling Out Possibilities

I know that reaching out allows reaching inward and the inverse is also true.

Mill therefore recommended what he called the inverse deductive method: he saw his discussion of this method in his

If you go on to the next slide, it is what I call the inverse law of Omni Media gaming.

Since I've spent quite a bit of time writing about how dancey pop has become in the past few years, it only follows that the inverse is true.

Law Number LIII: The thinness of the rocket shall be in inverse proportion to the chances of the development of said rocket coming to fruition

Repukes feign a desire for smaller government while lining their pockets at the expense of those who stand by them in inverse solidarity.

Of course the inverse is true, in that the less important or troubled a cause, the more attention it receives.

The inverse is also true; if trust is low, the leader and organization pay a huge trust tax.
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