junction (redirected from junctional)

junction

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.

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junction

1. Electronics

a. a contact between two different metals or other materials

b. a transition region between regions of differing electrical properties in a semiconductor

2. a connection between two or more conductors or sections of transmission lines

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junction [′jəŋk·shən]

(civil engineering)

A point of intersection of roads or highways, especially where one terminates.

(electricity)

major node

(electronics)

A region of transition between two different semiconducting regions in a semiconductor device, such as apnjunction, or between a metal and a semiconductor.

(electromagnetism)

A fitting used to join a branch waveguide at an angle to a main waveguide, as in a tee junction. Also known as waveguide junction.