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extension

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The definition of an extension is an addition such as to a building, an extra phone line connected to the main line or an extra amount of time given to someone to pay a debt.

(noun)

An example of an extension is adding a second story to a single story house.
An example of an extension is line two on a business line.
An example of an extension is someone getting an extra fifteen days to pay their electric bill.

See extension in Webster's New World College Dictionary

noun

an extending or being extended
the amount or degree to which something is or can be extended; range; extent
a part that forms a continuation or addition: an extension to a factory
an extra period of time allowed a debtor for making payment
a branch of a university for students who cannot attend the university proper
an extra telephone connected to the same line as the main telephone
1. the straightening of a flexed limb
2. traction applied to a fractured or dislocated limb so as to bring it into its normal position
Ballet
1. the act or an instance of extending either leg at any angle from the body
2. the capability of a dancer to so extend a leg, specif. at a difficult angle for a period of time
Commerce
1. an amount on an invoice calculated by multiplying quantity by price
2. the calculation of such an amount
Logic the class of all particular objects to which a term refers; denotation
Physics that property of a body by which it occupies space

Origin: ME extensioun < L extensio < pp. of extendere: see extend

adjective

designating a device that can be extended or that extends something else: extension ladder, extension cord

Related Forms:

extensional adjective

See extension in American Heritage Dictionary 4

noun

The act of extending or the condition of being extended.
The amount, degree, or range to which something extends or can extend: The wire has an extension of 50 feet.
a. The act of straightening or extending a limb.
b. The position assumed by an extended limb.
Medicine The application of traction to a fractured or dislocated limb to restore the normal position.
a. An addition that increases the area, influence, operation, or contents of something: an extension for the vacuum cleaner; built a new extension onto the hospital wing.
b. An additional telephone connected to a main line.
a. An allowance of extra time, as for the repayment of a debt.
b. The period of this extra time: three months' extension on the loan.
The property of an object by which it occupies space.
A program in a university, college, or school that offers instruction, as by television or correspondence, to persons unable to attend at the usual time or in the usual place.
Logic The class of objects designated by a specific term or concept; denotation.
Mathematics A set that includes a given and similar set as a subset.
Computer Science A set of characters that follow a filename and are separated from it by a period, used to identify the kind of file: In most operating systems, file names having the extension .EXE are executable files.