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
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
Rupturing the northernmost 296 miles of the San Andreas Fault from northwest of San Juan Bautista to the triple junction at Cape Mendocino, the earthquake confounded contemporary geologists with its large, horizontal displacements and great rupture length.
—
Kurt Snibbe, Oc Register, 17 Apr. 2026
For a standard single-junction solar cell, that ceiling is around 33%.
—New Atlas, 13 Apr. 2026
That is the junction where a forensic psychosocial evaluation can become a catalyst for justice and promote the human dignity.
—Sonia Singh, Rolling Stone, 2 Apr. 2026
The new device incorporates strontium and titanium to create internal p-n junctions that act as smooth electronic gates.
—Mrigakshi Dixit, Interesting Engineering, 20 Mar. 2026
See All Example Sentences for junction
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Kurt Snibbe, Oc Register, 17 Apr. 2026
For a standard single-junction solar cell, that ceiling is around 33%.
—New Atlas, 13 Apr. 2026
That is the junction where a forensic psychosocial evaluation can become a catalyst for justice and promote the human dignity.
—Sonia Singh, Rolling Stone, 2 Apr. 2026
The new device incorporates strontium and titanium to create internal p-n junctions that act as smooth electronic gates.
—Mrigakshi Dixit, Interesting Engineering, 20 Mar. 2026
See All Example Sentences for junction
Cite this Entry
“Junction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/junction. Accessed 19 Apr. 2026.
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
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