junction

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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
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

junction

[′jəŋk·shən]
(civil engineering)
A point of intersection of roads or highways, especially where one terminates.
(electricity)
(electronics)
A region of transition between two different semiconducting regions in a semiconductor device, such as a pn junction, 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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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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References in periodicals archive ?
INTRODUCTION: Talon cups are morphologically well-delineated, accessory talon-shaped cusps, projecting from the lingual or facial surface of the crown of incisors and extending at least half the distance from the cementoenamel junction to the incisal edge (1).
The additional cusp on the palatal surface was diagnosed as Type 1 Talon because it extended to more than half the distance from the cementoenamel junction to the incisal edge [1].
They are aimed to locate the apical constriction, cementoenamel junction or the apical foramen.
cingulum, followed by lateral fossa, cementoenamel junction and root in decreasing order, most commonly located in the midpalatal area followed by distal and then mesial.
After sketching the maxillary central incisor type from the lateral cephalometric radiographs, the superius point of the incisal edge was joined with the middle point of the cementoenamel junction to depict the crown axis, and the middle point of the cementoenamel junction was joined with the root apex to depict the longitudinal axis.
Taurodontism is a developmental anomaly in tooth morphology characterised by the lack of constriction at the level of the cementoenamel junction, vertically elongated pulp chambers and apical displacement of the pulpal floor.
On the other hand CAL is the distance between the base of pocket and a fixed point on the crown such as cementoenamel junction (CEJ).3