Associations to the word «Dual»


DUAL, adjective. Exhibiting duality; characterized by having two (usually equivalent) components.
DUAL, adjective. Acting as a counterpart.
DUAL, adjective. Double.
DUAL, adjective. (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.
DUAL, adjective. (linear algebra) Being the space of all linear functionals of (some other space).
DUAL, adjective. (category theory) Being the dual of (some other category); containing the same objects but with domain and codomain reversed for all functions.
DUAL, noun. Of an item that is one of a pair, the other item in the pair.
DUAL, noun. (geometry) Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces.
DUAL, noun. (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.
DUAL, noun. (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.
DUAL AUDIO, adjective. Pertaining to media that gives the option to listen to audio from two different languages.
DUAL BOOT, adjective. Alternative spelling of dual-boot
DUAL CARRIAGEWAY, noun. (UK) A road in which the two directions of traffic are separated by a central barrier or strip of land, known as a central reservation or median.
DUAL CITIZENSHIP, noun. The status of being a citizen of two countries
DUAL CITIZENSHIPS, noun. Plural of dual citizenship
DUAL CONTROL, noun. (uncountable) The control of a vehicle by either one of two people
DUAL CONTROL, noun. (countable) The equipment that allows such control
DUAL CONTROLS, noun. Plural of dual control
DUAL MANDATE, noun. Situation where a person has been elected to two different bodies with different competencies, for example being a member of both a national legislature, and of a local authority.
DUAL MEET, noun. (sports) An athletic competition between two teams (of a club, school, nation, etc.) and two opposing teams.
DUAL MODE, noun. Either of two modes in which a device is designed to operate
DUAL MODES, noun. Plural of dual mode
DUAL NUMBER, noun. (grammar) Grammatical number denoting a quantity of exactly two.
DUAL NUMBER, noun. (mathematics) An element of the algebra of dual numbers, which includes the real numbers and an element ε which satisfies ε² = 0.
DUAL PHOTON ABSORPTIOMETRIES, noun. Plural of dual photon absorptiometry
DUAL PHOTON ABSORPTIOMETRY, noun. (medical) Use of two differing sources of radiation to measure the density of a substance, typically bone.
DUAL POLYHEDRA, noun. Plural of dual polyhedron
DUAL POLYHEDRON, noun. (mathematics) Either of a pair of polyhedra in which the faces of one are equivalent to the vertices of the other
DUAL PRIMARY, noun. (US) Two primaries held concurrently
DUAL SCREEN, noun. Two adjacent screens
DUAL SCREENS, noun. Plural of dual screen
DUAL SIM, adjective. (mobile phones) holding two SIM cards
DUAL SPACE, noun. (mathematics) The vector space which comprises the set of linear transformations of a given vector space into its scalar field
DUAL SPACES, noun. Plural of dual space

Dictionary definition

DUAL, adjective. Consisting of or involving two parts or components usually in pairs; "an egg with a double yolk"; "a double (binary) star"; "double doors"; "dual controls for pilot and copilot"; "duple (or double) time consists of two (or a multiple of two) beats to a measure".
DUAL, adjective. Having more than one decidedly dissimilar aspects or qualities; "a double (or dual) role for an actor"; "the office of a clergyman is twofold; public preaching and private influence"- R.W.Emerson; "every episode has its double and treble meaning"-Frederick Harrison.
DUAL, adjective. A grammatical number category referring to two items or units as opposed to one item (singular) or more than two items (plural); "ancient Greek had the dual form but it has merged with the plural form in modern Greek".

Wise words

The pen is mightier than the sword.
Edward George Bulwer-Lytton