junction

noun

junc·​tion ˈjəŋ(k)-shən How to pronounce junction (audio)
1
: an act of joining : the state of being joined
2
a
: a place or point of meeting
b
: an intersection of roads especially where one terminates
c
: a point (as in a thermocouple) at which dissimilar metals make contact
d
: an interface in a semiconductor device between regions with different electrical characteristics
3
: something that joins
junctional
ˈjəŋ(k)-sh(ə-)nəl
 How to pronounce junction (audio)
adjective

Examples of junction in a Sentence

a junction of nerves and muscle the junction of Route 12 and Route 87
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
As of Thursday, Highway 166 was closed from the northern junction of Highway 101 in Santa Maria to Perkins Road in New Cuyama, according to the California Department of Transportation. Hannah Poukish, Sacbee.com, 7 Aug. 2025 Under the latest TxDOT proposal, the interstate would go from five to three lanes at that junction, with two lanes dedicated to traffic exiting onto Texas 174. Matthew Adams, Fort Worth Star-Telegram, 6 Aug. 2025 But there are no rumble strips on the highway in the middle, no sign saying there's an upcoming junction. Omkar Khandekar, NPR, 20 July 2025 This mysterious part of the ocean is at the junction of two powerful currents, one of which is salty and warm, while the other is cold and rich in nutrients, creating a highly biodiverse environment, experts said. Lauren Liebhaber, Miami Herald, 1 Aug. 2025 See All Example Sentences for junction

Word History

Etymology

Latin junction-, junctio, from jungere to join — more at yoke

First Known Use

1711, in the meaning defined at sense 1

Time Traveler
The first known use of junction was in 1711

Browse Nearby Words

Cite this Entry

“Junction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/junction. Accessed 19 Aug. 2025.

Kids Definition

junction

noun
junc·​tion ˈjəŋ(k)-shən How to pronounce junction (audio)
1
: an act of joining : the state of being joined
2
: a place or point of meeting
a railroad junction

Medical Definition

junction

noun
junc·​tion ˈjəŋ(k)-shən How to pronounce junction (audio)
: a place or point of meeting
the structure of the synaptic junction as revealed by electron microscopy
see neuromuscular junction
junctional adjective

More from Merriam-Webster on junction

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