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
- DUAL algorithm, or Diffusing update algorithm, used to update Internet protocol routing tables
- DUAL table, a special one-row and one-column database table
- Dual SIM cellphone
- Dual (brand), a manufacturer of Hifi equipment
- Dual county, referring to a Gaelic Athletic Association county which traditionally competes at a similar level in both Gaelic football and hurling
Read more about Dual: Media
Famous quotes containing the word dual:
“Thee for my recitative,
Thee in the driving storm even as now, the snow, the winter-day
declining,
Thee in thy panoply, thy measurd dual throbbing and thy beat
convulsive,
Thy black cylindric body, golden brass and silvery steel,”
—Walt Whitman (18191892)