The Collaborative International Dictionary
Isotropy \I*sot"ro*py\, n. (Physics) Uniformity of physical properties in all directions in a body; absence of all kinds of polarity; specifically, equal elasticity in all directions.
Wiktionary
n. (context geometry physics English) The property of being identical, or having the same physical properties, in all directions.
WordNet
n. (physics) the property of being isotropic; having the same value when measured in different directions [syn: symmetry] [ant: anisotropy]
Wikipedia
Isotropy is uniformity in all orientations; it is derived from the Greek isos (ἴσος, "equal") and tropos (τρόπος, "way"). Precise definitions depend on the subject area. Exceptions, or inequalities, are frequently indicated by the prefix an, hence anisotropy. Anisotropy is also used to describe situations where properties vary systematically, dependent on direction. Isotropic radiation has the same intensity regardless of the direction of measurement, and an isotropic field exerts the same action regardless of how the test particle is oriented.
Usage examples of "isotropy".
Book, Pointsman will be alone, in a black field lapsing to isotropy, to the zero, waiting to be last to go.