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Dictionary


fourth' dimen'sion




1. Physics, Math.a dimension in addition to length, width, and depth, used so as to be able to employ geometrical language in discussing phenomena that depend on four variables: Time is considered a fourth dimension for locating points in space-time.
2. something beyond the kind of normal human experience that can be explained scientifically: The story deals with ESP and other excursions into the fourth dimension.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

Fourth Commandmentfourth estate
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