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junction |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.07 sec. |
junctionThe point at which two elements make contact. In a transistor, a junction is the point where an N-type material makes contact with a P-type material. junction 1. Electronics a. a contact between two different metals or other materials b. a transition region between regions of differing electrical properties in a semiconductor 2. a connection between two or more conductors or sections of transmission lines How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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In the immune system, such clustering and segregation of membrane-bound proteins is observed at the intercellular junction between lymphocytes and antigen presenting cells (APC) as they become adherent and engage in antigen recognition. Biologically, formation and stability of intercellular junctions are mediated by protein complexes at the cell surface, as well as the internal machinery of the cells involved. |
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