/ Dictionary / Index J Josephson junction: Meaning and Definition of Find definitions for: Jo'seph•son junc"tion Pronunciation: ( jō'zuf-sun, -suf-), [key] — Electronics. Electronics. 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. Josephson Josephus Related Content Daily Word Quiz: miscreant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language