Unit

Unit may refer to:

Science, technology, and medicine

• Unit of measurement, a definite magnitude of a physical quantity, defined and adopted by convention or by law
• Astronomical unit, a unit of length roughly between the Earth and the Sun
• Blood unit, a measurement in blood transfusion is approximately 470ml
• English units, a historical units of measurement used in England up to 1824
• Enzyme unit, a measurement of active enzyme in a sample
• Equivalent (chemistry), a unit of measurement used in chemistry and biology
• Geological unit or rock unit, a volume of identifiable rock or ice
• GNU Units, a software program for unit conversion
• International unit, a unit of measurement for nutrients and drugs
• Natural unit, a physical unit of measurement
• Statistical unit, a data point on which statistical analysis is performed
• Unit testing, a method by which individual units of source code
• Unit, a vessel or section of a chemical plant or other industrial plant where a step in a production process called a unit operation takes place
• Central processing unit, the electronic circuitry within a computer that carries out the instructions of a computer program

Mathematics

• Identity element
• 1 (number), the number 1
• Unit (ring theory), an element that is invertible with respect to ring multiplication
• Unit round-off, an upper bound on the relative error due to rounding in floating point arithmetic
• Unit angle, a full turn equal to an angle of 1
• Unit circle, a circle with a radius of length 1
• Unit cube, a cube with sides of length 1
• Unit impulse, an impulse of height 1
• Unit interval, an interval of distance 1
• Unit set, a singleton, a set with exactly 1 element
• Unit sphere, a sphere with a radius of length 1
• Unit square, a square with sides of length 1
• Unit type, a type allowing only one value in type theory
• Unit vector, a vector with length equal to 1
• A tuple of length 0; an empty tuple

Entertainment and the arts

• UNIT, a fictional military organization in the science fiction television series Doctor Who
• The Unit, an American television series
• Unit of action, a discrete piece of action (or beat) in a theatrical presentation

Music

• Unit (album), 1997 album by the Australian band Regurgitator
• Unit (Cristian Fleming) (born 1974), electronic musician based in New York City
• The Units, a synthpunk band

Other uses

• Unit (housing), a self-contained suite of rooms within a set of similar dwellings
• Unit of account, a monetary unit of measurement
• Unit of alcohol, a measure of the volume of pure ethanol in an alcoholic beverage
• Active service unit, the former Provisional Irish Republican Army cell
• Head unit, a component of a stereo system mounted inside of a vehicle
• Military unit, a homogeneous military organization whose administrative and command functions are self-contained
• Multiple unit, self-propelled train carriage capable of coupling other units of the same type
• Strategic business unit, a profit center which focuses on product offering and market segment
• Work unit, the name given to a place of employment in the People's Republic of China
• A course credit at a school or other educational institution
• The field goal unit in North American football

See also

• All pages beginning with "Unit"
• All pages with titles containing Unit
• UNITA, the second-largest political party in Angola
• Subunit (disambiguation)
• Air unit (disambiguation)
• Piece (disambiguation)
• Unite (disambiguation)