dual
adjective · noun · verbA1Định nghĩa theo từ loại
Tính từ
adjective- 1.
(not comparable)Characterized by having two (usually equivalent) components.
a dual-motor vehicle
Đồng nghĩa: double, twin
- 2.
(not comparable)Pertaining to two, pertaining to a pair of.
dual engine failure
dual citizenship
Đồng nghĩa: double, duplicate, dual, double, duplex, duple, duplicate, twissel, twofold, twosome
- 3.
(not comparable)(grammar) Pertaining to a grammatical number in certain languages that refers to two of something, such as a pair of shoes.
Modern Arabic displays a dual number, as did Homeric Greek.
- 4.
(not comparable)(mathematics, physics) Exhibiting duality.
- 5.
(not comparable)(linear algebra) Being the space of all linear functionals of (some other space).
- 6.
(not comparable)(category theory) Being the dual of some other category; containing the same objects but with source and target reversed for all morphisms.
Đồng nghĩa: opposite
Danh từ
noun- 1.
Of an item that is one of a pair, the other item in the pair.
- 2.
(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.
- 3.
(grammar) The dual number.
- 4.
(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.
- 5.
(wrestling) A head-to-head match or meet between two teams, such as two high schools or colleges.
Động từ
verb- 1.
(transitive)To convert from single to dual; specifically, to convert a single-carriageway road to a dual carriageway.
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Nguồn gốc từ
dwóh₁ Borrowed from Latin dualis (two), from duo (two) + adjective suffix -alis.