sphere of attraction

sphere of attraction

[′sfir əv ə′trak·shən]
(physical chemistry)
The distance within which the potential energy arising from mutual attraction of two molecules is not negligible with respect to the molecules' average thermal energy at room temperature.
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References in periodicals archive ?
The Great Attractor region is a large flat bottom gravitational valley with a sphere of attraction that extends across the Laniakea Supercluster.