Meaning of Josephson junction

Jo'seph•son junc"tion

Pronunciation: ( jō'zuf-sun, -suf-), [key]
— Electronics. Electronics.
  1. a high-speed switch, used in experimental computers, that operates on the basis of a radiative phenomenon exhibited by a pair of superconductors separated by a thin insulator.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.