- The definition of a junction is a place where things join or cross.
An example of a junction is where one highway crosses another.
The junction of two country roads.
- a joining or being joined
- a place or point of joining or crossing, as of highways or railroads
- an interface between materials having different characteristics, as the pn junction in a semiconductor or the boundary between two metals in a thermocouple
Origin of junctionClassical Latin junctio ; from jungere, to join
- The act or process of joining or the condition of being joined.
- A place where two things join or meet, especially a place where two roads or railway routes come together and one terminates.
- A transition layer or boundary between two different materials or between physically different regions in a single material, especially:a. A connection between conductors or sections of a transmission line.b. The interface between two different semiconductor regions in a semiconductor device.c. A mechanical or alloyed contact between different metals or other materials, as in a thermocouple.
Origin of junctionLatin iūnctiō, iūnctiōn-, from iūnctus, past participle of iungere, to join; see yeug- in Indo-European roots.
From Latin iūnctiō (“union, joining, uniting”), from iungō (“join, attach together”).
junction - Computer Definition
The point at which two elements make contact. In a transistor, a junction is the point where an N-type material makes contact with a P-type material.