Definition of junction in US English:



  • 1A point where two or more things are joined.

    ‘the junction of the two rivers’
    • ‘But it will be copied again and again, at junctions in the wider Internet, and so will e-mails sent by individuals.’
    • ‘Even sponges show this capacity in the transient development of septate junctions between certain cells.’
    • ‘I stopped at the junction that joined the studio with the main road.’
    • ‘The best known of these are atrial receptors, which are nerves ending mainly at the junctions of the great veins with the atria.’
    • ‘Immediately beyond is a junction with another stream joining from the left from Wisdom Tooth Passage.’
    • ‘He found that learning occurs at the synapse (the junction between two neurons) by several means.’
    • ‘This structure is consistent with the mechanism of the particle formation, where growing insulin fibrils encounter other fibrils and link together to form junctions.’
    • ‘Some are the meeting of meridian pathways while others are junctions with an internal pathway of the meridian.’
    • ‘Another form of local communication is provided by gap junctions, which directly link the cytoplasm of certain cells and so allow the exchange both of ions and of small molecules between them.’
    • ‘This gets a little bigger fairly quickly, and passes a couple of uninviting junctions, before entering a wide bedding passage with a stream flowing through it.’
    • ‘Some surgeons prefer to have silk ties securing any junctions where fill tubes connect to prevent unintended separation during the procedure, but we have found that unnecessary.’
    • ‘The cells were surrounded by a basal lamina and joined by primitive junctions.’
    • ‘Adjacent cells are joined together at the junction of oppositely oriented elevations which have a small spine at the tip.’
    • ‘The places where the emitter joins the base and the base joins the collector are called junctions.’
    • ‘Molecular analysis of repair junctions indicates efficient microhomology-mediated end joining.’
    • ‘People keep saying it's this awkward union, but it's a great junction of two fashion superstars.’
    • ‘It is observed in a variety of systems, from invertebrate neuromuscular junctions to neocortical synapses.’
    • ‘These sensitive areas are known as acupoints, and are thought to link to nerve junctions in other parts of the body.’
    • ‘A coordinated assault on five or more junctions in the 10,500 miles of pipeline that connect the five main Saudi oilfields could cripple the industry.’
    • ‘It is rare to find a simple right lymphatic duct that enters directly into the junction of the internal jugular and subclavian veins.’
    join, joint, intersection, link, bond, weld, seam, coupling, connection, union, juncture
    confluence, convergence, meeting, meeting point, conflux, juncture, watersmeet
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    1. 1.1 A place where two or more roads or railroad lines meet.
      • ‘Work is already underway on the site of the former Railway pub at the junction of Leigh Road and Lovers Lane at Howe Bridge.’
      • ‘To ensure public safety, access to the event will be via Union Street only and numbers will be restricted at the entry point at the junction of Union Street and Market Street.’
      • ‘The crash happened at 12.28 pm, close to the slip road of the junction on the southbound carriageway.’
      • ‘A further measure to enhance road safety in this area would be to extend the double yellow lines from the junction of Manor Road down to High Fold Lane.’
      • ‘The place was at the junction of two roads, one of which was parallel to a railroad line.’
      • ‘Traffic lights operate at the junction with the main road, a busy dual carriageway.’
      • ‘Acceptance gaps can be created either by headways in a traffic stream or by traffic control devices such as traffic signals at junctions and pelican crossings.’
      • ‘The man says he drove them to Carlow, dropping mother and son at the traffic lights at the junction of Kilkenny Road and Burrin Street.’
      • ‘Witnesses said that when the car hit Mr Kornelis, he was thrown 20 feet into the air and across the junction on to Railway Road.’
      • ‘These signs were fixed at pedestrian crossings, junctions in residential roads and even on posts in the woodland idyll of Ham Common.’
      • ‘Now funds have been obtained to meet the long-standing demand for a roundabout at the junction of Mill Green Road.’
      • ‘Bikes have their own lanes, traffic lights at junctions and dedicated road signs.’
      • ‘Paula and Daniel were left trapped between the car and traffic lights at the junction of Liverpool Road and Green Lane.’
      • ‘Police had to seal off the junction for more than two hours, forcing motorists to find alternative routes.’
      • ‘The woman and her son were caught between the car and the traffic lights at the pelican crossing at the junction of the two roads.’
      • ‘As the cavalcade moved along the Inner Ring Road towards the junction, Arun took a right turn around the traffic island.’
      • ‘We went to the post office, crossing at the pedestrian crossing at the junction with Blagdon Road and returned as soon as she had finished to find a warden putting a notice on the car.’
      • ‘Longer buses are also far more likely to stop while blocking road junctions or pedestrian crossings, especially in heavy traffic.’
      • ‘Areas near the new traffic-signalled junctions, a service road and a new pond are also being landscaped.’
      • ‘Strangely, the new system has not really reduced the number of traffic signals and junctions on either roads.’
      crossroads, crossing, intersection, interchange, t-junction, box junction, gyratory
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  • 2Electronics
    A region of transition in a semiconductor between a part where conduction is mainly by electrons and a part where it is mainly by holes.

    • ‘This quantum mechanical tunneling process is an important mechanism for thin barriers such as those in metal-semiconductor junctions on highly-doped semiconductors.’
    • ‘These junctions can be made atomically sharp and defect free, allowing for the production of high performance electronics integrated within each single nanostructure.’
  • 3The action or fact of joining or being joined.

    unification, uniting, joining, merging, merger, fusion, fusing, amalgamating, amalgamation, coalition, combining, combination, consolidation, conjunction, confederation, federation, integration, synthesis, blend, blending, mixture, mingling, commingling
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Early 18th century (in junction (sense 3)): from Latin junctio(n-), from jungere ‘to join’.