Dictionary

extension

noun ex·ten·sion \ik-ˈsten(t)-shən\

Definition of EXTENSION

1
a :  the action of extending :  state of being extended
b :  an enlargement in scope or operation <tools are extensions of human hands>
2
a :  the total range over which something extends :  compass
b :  denotation 4
3
a :  the stretching of a fractured or dislocated limb so as to restore it to its natural position
b :  an unbending movement around a joint in a limb (as the knee or elbow) that increases the angle between the bones of the limb at the joint — compare flexion 4a
4
:  a property whereby something occupies space
5
:  an increase in length of time; specifically :  an increase in time allowed under agreement or concession
6
:  a program that geographically extends the educational resources of an institution by special arrangements (as correspondence courses) to persons otherwise unable to take advantage of such resources
7
a :  a part constituting an addition
b :  a section or line segment forming an additional length
c :  an extra telephone connected to the principal line
d :  a length of natural or synthetic hair that is worn attached to one's natural hair
e :  a series of usually three or four characters following a dot at the end of the name of a computer file that specifies the file's format or purpose
8
:  a mathematical set (as a field or group) that includes a given and similar set as a subset

Examples of EXTENSION

  1. extension of the patient's life
  2. He's asking for a contract extension.
  3. Make sure that the muscles get the proper amount of extension.
  4. I missed the deadline but was granted an extension.

Origin of EXTENSION

Middle English, from Late Latin extension-, extensio, from Latin extendere
First Known Use: 15th century

Rhymes with EXTENSION

EXTENSION Defined for Kids

extension

noun ex·ten·sion \ik-ˈsten-shən\

Definition of EXTENSION for Kids

1
:  the act of making something longer or greater <extension of the sail>
2
:  an increase in length or time
3
:  a part forming an addition or enlargement
Medical Dictionary

extension

noun ex·ten·sion \ik-ˈsten-chən\

Medical Definition of EXTENSION

1
:  the stretching of a fractured or dislocated limb so as to restore it to its natural position
2
:  an unbending movement around a joint in a limb (as the knee or elbow) that increases the angle between the bones of the limb at the joint—compare flexion 1
June 30, 2015
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