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junction

 - 5 dictionary results

junc⋅tion

  [juhngk-shuhn]
Use junction in a Sentence
–noun
1. an act of joining; combining.
2. the state of being joined; union.
3. a place or point where two or more things are joined, as a seam or joint.
4. a place or point where two or more things meet or converge.
5. a place or station where railroad lines meet, cross, or diverge.
6. an intersection of streets, highways, or roads.
7. something that joins other things together: He used the device as a junction between the branch circuit and the main power lines.
Origin:
1705–15; < L junctiōn- (s. of junctiō), equiv. to junct(us), ptp. of jungere to join (jung- join + -tus ptp. suffix) + -iōn- -ion

Related forms:
junc⋅tion⋅al, adjective

Synonyms:
3. union, linkage, coupling; welt. 7. connection. Junction, juncture refer to a place, line, or point at which two or more things join. A junction is also a place where things come together: the junction of two rivers. A juncture is a line or point at which two bodies are joined, or a point of exigency or crisis in time: the juncture of the head and neck; a critical juncture in a struggle.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To junction
junc·tion   (jŭngk'shən)   
n.  

  1. The act or process of joining or the condition of being joined.

  2. A place where two things join or meet, especially a place where two roads or railway routes come together and one terminates.

  3. A transition layer or boundary between two different materials or between physically different regions in a single material, especially:

    1. A connection between conductors or sections of a transmission line.

    2. The interface between two different semiconductor regions in a semiconductor device.

    3. A mechanical or alloyed contact between different metals or other materials, as in a thermocouple.


[Latin iūnctiō, iūnctiōn-, from iūnctus, past participle of iungere, to join; see yeug- in Indo-European roots.]
junc'tion·al adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

junction 
1711, "act of joining," from L. junctionem (nom. junctio), noun of action from jungere "to join" (see jugular). Meaning "place where things meet" first attested 1841, originally in ref. to railroad tracks.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: junc·tion
Pronunciation: 'j&[ng](k)-sh&n
Function: noun
: a place or point of meeting junction as revealed by electron microscopy> —see NEUROMUSCULAR JUNCTION —junc·tion·al /-shn&l, -sh&n-&l/ adjective
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

junction junc·tion (jŭngk'shən)
n.

  1. The act or process of joining or the condition of being joined.

  2. A place where two things join or meet, especially a place where two things come together and one terminates.

  3. A transition layer or boundary between two different materials or between physically different regions in a single material.

junc'tion·al adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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