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

ˈjəŋ(k)-sh(ə-)nəl 

adjective

Synonyms of junction

• intersection
• juncture

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

Gins, Oudard said, sit at the crucial junction where agricultural output becomes textile industry input. — Jasmin Malik Chua, Footwear News, 7 Oct. 2026

The approach, published in Energy & Environmental Science, could offer a route to surpass the conventional theoretical efficiency limit for single-junction solar cells. — Kaif Shaikh, Interesting Engineering, 7 Oct. 2026

Urban grids are a tight mesh of streets and junctions, meaning that any two points on them are connected by many viable routes. — Daniel Immerwahr, New Yorker, 28 Sep. 2026

In an era of $400 tasting menus, the cost lands as reasonable given the meal’s many junctions of meticulous artistry and down-to-earth deliciousness. — Bill Addison, Los Angeles Times, 24 Sep. 2026

Word History

Etymology

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

First Known Use

1711, in the meaning defined at sense 1

Phrases Containing junction

• box junction
• gap junction
• Josephson junction

Rhymes for junction

• function
• unction
• adjunction
• compunction
• conjunction
• disjunction
• dysfunction
• injunction
• malfunction
• eigenfunction
• multifunction
• heterojunction

Kids 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

junctional

-shnəl, -shən-ᵊl 

adjective