Definition of junction in English:


Syllabification: junc·tion
Pronunciation: /ˈjəNGkSHən


  • 2 Electronics A region of transition in a semiconductor between a part where conduction is mainly by electrons and a part where it is mainly by holes.
    More example sentences
    • This quantum mechanical tunneling process is an important mechanism for thin barriers such as those in metal-semiconductor junctions on highly-doped semiconductors.
    • These junctions can be made atomically sharp and defect free, allowing for the production of high performance electronics integrated within each single nanostructure.
  • 3The action or fact of joining or being joined.



More example sentences
  • Cells are attached to adjacent cells by junctional complexes in the lateral membranes, and form a polarized epithelium.
  • Melanomas can be junctional, intradermal, or compound according to whether they grow in the basal layer of the skin, in the true skin or in both.
  • The folding increases junctional surface area by 10 to 20 times, decreasing the stress per unit area.


early 18th century (sense 3): from Latin junctio(n-), from jungere 'to join'.

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