The extension of a cable facilitates the connection and enables the mobility of the devices.
From the Latin extensĭo , extension is the action and effect of extending or extending (making something take up more space, spreading or spilling what is together, unfolding, unwrapping). The term can be used to name the measure of space that a body occupies and the ability to occupy a part of the space.
For example: “I think this table is larger than ours” , “It is a large tunnel that reaches the center of the mountain” , “I want you to write a short report with the explanations of the case” , “The editor asked me to be careful with the length of the notes since there is little space available” .
An electrical cord as an extension
The extension of an electrical cable , on the other hand, is another cable that is added to the main one to facilitate the connection of an electrical installation.
An extension allows the mobility of an electrical device, since it can be moved away from the socket: “Please look for an extension so we can take the fan to the patio, which is very hot” , “I need an extension for the nightstand: I can't read on the dark bed.”
The concept in music
Music is another area that does not escape the use of the term that concerns us now. In its case, it is used to refer to the interval that exists in a musical instrument between what would be its highest sound and its lowest sound.
However, it is also true that this same word and meaning can also be applied to what would be the voice of a singer. In this way, you will be able to know perfectly what your vocal capacity is and the range of possibilities it offers you.
For anatomy, extension is the opposite of flexion.
Extension in anatomy and in the field
In anatomy, extension is the movement of separating body parts in an anteroposterior direction . The concept is opposed to the notion of flexion : “The coach asked me to do extension exercises to gain plasticity.”
Likewise, within the anatomical field, we cannot ignore the existence of what is known as the extension reflex, which is nothing more than an automatic and involuntary response where the tendons and bones take center stage.
Within the agricultural and livestock field, mention must be made of what is known as agricultural extension . Under this name there is an action that basically consists of applying the entire set of new knowledge, technology and new discoveries, the result of research, to what would be the exploitation that works with animals or that is dedicated to cultivation of certain plants for food.
The notion in Cuba and in computing
Another different use of this term that concerns us is the one given to it in Cuba, for example. Specifically, in this country what is done is to use the expression extension chair . With it, what is trying to define itself is what is commonly known as a lounger.
Computer science uses the concept of extension to refer to the string of characters that is appended to the name of a file , usually after a period, and that allows the type of file to be identified for its correct execution: “I need a program that Allows you to open documents with RAR extension .