junction
noun
junc·tion
ˈjəŋ(k)-shən 
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
adjective
ˈjəŋ(k)-sh(ə-)nəl
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
Surprisingly, cognitive decline in healthy aging isn't as simple as neurons dying, but rather neurons losing their spark at the synapse, the tiny junctions where signals leap from cell to cell.
—
Pranjal Malewar, New Atlas, 2 Sep. 2025
Afghanistan is frequently hit by earthquakes, especially in the Hindu Kush mountain range, which lies near the junction formed by the former Tethys Ocean and now squeezed together between the Eurasian and Indian tectonic plates.
—David Bressan, Forbes.com, 1 Sep. 2025
On the Far South Side of Chicago, the Grand Calumet becomes the junction where the Calumet River and the Little Calumet meet, the latter of which eventually flows into the Cal-Sag Channel.
—Adriana Pérez, Chicago Tribune, 31 Aug. 2025
Four rotors, mounted at wing junctions, provide lift for vertical flight and stability during transition.
—Kapil Kajal, Interesting Engineering, 29 Aug. 2025
See All Example Sentences for junction
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.
Pranjal Malewar, New Atlas, 2 Sep. 2025
Afghanistan is frequently hit by earthquakes, especially in the Hindu Kush mountain range, which lies near the junction formed by the former Tethys Ocean and now squeezed together between the Eurasian and Indian tectonic plates.
—David Bressan, Forbes.com, 1 Sep. 2025
On the Far South Side of Chicago, the Grand Calumet becomes the junction where the Calumet River and the Little Calumet meet, the latter of which eventually flows into the Cal-Sag Channel.
—Adriana Pérez, Chicago Tribune, 31 Aug. 2025
Four rotors, mounted at wing junctions, provide lift for vertical flight and stability during transition.
—Kapil Kajal, Interesting Engineering, 29 Aug. 2025
See All Example Sentences for junction
Cite this Entry
“Junction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/junction. Accessed 9 Sep. 2025.
Copy CitationKids Definition
junction
noun
junc·tion
ˈjəŋ(k)-shən
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
: a place or point of meeting
the structure of the synaptic junction as revealed by electron microscopy
see neuromuscular junction
Love words? Need even more definitions?
Merriam-Webster unabridged
Share