unit

unit

1. a mechanical part or integrated assembly of parts that performs a subsidiary function

2. a complete system, apparatus, or establishment that performs a specific function

3. the amount of a drug, vaccine, etc., needed to produce a particular effect

4. a standard measure used in calculating alcohol intake and its effect

5. Maths

a. the first position in a place-value counting system, representing a single-digit number

b. having a value defined as one for the system

6. Maths logic a set having a single member

7. NZ a self-propelled railcar
www.psigate.ac.uk/newsite/reference/units.html
www.ex.ac.uk/cimt/dictunit/dictunit.htm
www.unc.edu/~rowlett/units/index.html

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unit [′yü·nət]

(engineering)

An assembly or device capable of independent operation, such as a radio receiver, cathode-ray oscilloscope, or computer subassembly that performs some inclusive operation or function.

(mathematics)

An element of a ring with identity that has both a left inverse and a right inverse.

(ordnance)

Any military element whose structure is prescribed by competent authority, such as a table of organization and equipment; specifically, part of an organization.

A standard of basic quantity into which an item of supply is divided, issued, or used.

(physics)

A quantity adopted as a standard of measurement.