made up of two often like or complementary components; double: dual controls for pilot and copilot; an automobile with dual fatigue pipelines.
Having a double character or purpose: a belief within the double nature of truth.
Grammar Of, concerning, or being lots category that shows two individuals or things, such as Greek, Sanskrit, and Old English.
described as having two (usually comparable) elements.
regarding grammatical quantity (as in single and plural), referring to two of anything, including a couple of footwear, in the context of the single, plural and in some languages, test grammatical quantity. Contemporary Arabic displays a dual quantity, as did Homeric Greek.
Expressing, or consisting of, the quantity two; belonging to two; , in Greek.
having several distinctly dissimilar aspects or characteristics
composed of or involving two parts or elements generally in sets
a grammatical number category referring to two items or devices in place of one item (single) or higher than two things (plural)
Grammar An inflected type of a noun, adjective, pronoun, or verb combined with two things or people.
Of something that is one of some, the other item in the set.
Of a consistent polyhedron with V vertices and F faces, the standard polyhedron having F vertices and V faces.
twin number The grammatical number of a noun establishing two of some thing (as in single, dual, plural), sometimes discussing two of any such thing (a few, precisely two of), or a chirality-marked set (such as left and right, just like gloves or shoes) or in some languages as a discourse marker, "between you and me". A couple of languages show test number.
Of a vector in an inner item space, the linear functional corresponding to using the internal item with this vector. The group of all duals is a vector room called the dual room.
In sentence structure, the amount associated with two; the dual quantity.
In geometry, a figure or theorem gotten by a principle of duality, as by interchanging side and position in an airplane.
In chess, an issue that has two solutions, which, one out of which the mate may be provided either by one or by two pieces, or by one-piece on several various squares.