# dual meaning

EN[djʊəl] [ˈdu.əl] [-ʊəl]WDual

- Dual may refer to:
- Dual (mathematics), a notion of paired concepts that mirror one another
- Dual (category theory), a formalization of mathematical duality
- . . . see more cases in Category:Duality theories
- Dual (grammatical number), a grammatical category used in some languages
- Duality (electrical circuits)
- Dual diagnosis, a psychiatric diagnosis of co-occurrence of substance abuse and a mental problem
- Dual fertilization, simultaneous application of a P-type and N-type fertilizer
- DUAL (cognitive architecture), an artificial intelligence design model

- NounPLdualsSUF-ual
- Of an item that is one of a pair, the other item in the pair.
- (geometry) Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces.
- The octahedron is the
**dual**of the cube.

- The octahedron is the
- (grammar) dual number The grammatical number of a noun marking two of something (as in singular, dual, plural), sometimes referring to two of anything (a couple of, exactly two of), or a chirality-marked pair (as in left and right, as with gloves or shoes) or in some languages as a discourse marker, "between you and me". A few languages display trial number.
- (mathematics) Of a vector in an inner product space, the linear functional corresponding to taking the inner product with that vector. The set of all duals is a vector space called the dual space.

- Of an item that is one of a pair, the other item in the pair.
- Adjective
- Exhibiting duality; characterized by having two (usually equivalent) components.
- Acting as a counterpart.
- Double.
**dual**-headed computer

- (grammar) Pertaining to grammatical number (as in singular and plural), referring to two of something, such as a pair of shoes, in the context of the singular, plural and in some languages, trial grammatical number. Modern Arabic displays a dual number, as did Homeric Greek.
- (linear algebra) Being the space of all linear functionals of (some other space).
- (category theory) Being the dual of (some other category); containing the same objects but with domain and codomain reversed for all functions.

- Exhibiting duality; characterized by having two (usually equivalent) components.
- More Examples
- Used in the Middle of Sentence
- On the other hand, a formulation of dsRNA in bacteria can give
**dual**benefits in terms of dsRNA synthesis and stability in a kind of bioformulation.

- On the other hand, a formulation of dsRNA in bacteria can give

- Used in the Middle of Sentence

## Definition of __dual__ in English Dictionary

- Part-of-Speech Hierarchy
- Adjectives
- Uncomparable adjectives

- Uncomparable adjectives
- Nouns
- Countable nouns

- Countable nouns

- Adjectives

Source: Wiktionary

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