frame' of ref'erence

pl. frames of reference.

1. a structure of concepts, values, customs, views, etc., by means of which an individual or group perceives or evaluates data, communicates ideas, and regulates behavior.
2. Also called reference frame. Physics.a framework that is used for the observation and mathematical description of physical phenomena and the formulation of physical laws, usually consisting of an observer, a coordinate system, and a clock or clocks assigning times at positions with respect to the coordinate system.

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

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