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Opposite (semantics) In lexical semantics, opposites are words lying in an inherently incompatible binary relationship. For example, something that is male entails that it is not female. It is referred to as a 'binary' relationship because there are two members in a set of opposites. The relationship between opposites is known as opposition.
In set theory, the union (denoted by ∪) of a collection of sets is the set of all elements in the collection. [ 1] It is one of the fundamental operations through which sets can be combined and related to each other. A nullary union refers to a union of zero ( ) sets and it is by definition equal to the empty set.
Anaphrodisiac. An anaphrodisiac (also antaphrodisiac or antiaphrodisiac) is a substance that quells or blunts the libido. It is the opposite of an aphrodisiac, something that enhances sexual appetite. The word anaphrodisiac comes from the Greek privative prefix ἀν-, denoting negation, and aphrodisiac, from the Greek goddess of love, Aphrodite.
In particle physics, every type of particle of "ordinary" matter (as opposed to antimatter) is associated with an antiparticle with the same mass but with opposite physical charges (such as electric charge ). For example, the antiparticle of the electron is the positron (also known as an antielectron). While the electron has a negative electric ...
Unity of opposites. The unity of opposites (Latin; unio oppositorum) is the central category of dialectics, said to be related to the notion of non-duality in a deep sense. [ 1] It defines a situation in which the existence or identity of a thing (or situation) depends on the co-existence of at least two conditions which are opposite to each ...
Listing of antonyms, such as "good and evil", "great and small", etc., does not create oxymorons, as it is not implied that any given object has the two opposing properties simultaneously. In some languages, it is not necessary to place a conjunction like and between the two antonyms; such compounds (not necessarily of antonyms) are known as ...
Antiisomorphism. In category theory, a branch of mathematics, an antiisomorphism (or anti-isomorphism) between structured sets A and B is an isomorphism from A to the opposite of B (or equivalently from the opposite of A to B ). [1] If there exists an antiisomorphism between two structures, they are said to be antiisomorphic.
Homonym. In linguistics, homonyms are words which are either homographs —words that have the same spelling (regardless of pronunciation)—or homophones —words that have the same pronunciation (regardless of spelling)—or both. [ 1] Using this definition, the words row (propel with oars), row (a linear arrangement) and row (an argument ...