'Isotropy' definitions:

Definition of 'isotropy'

From: WordNet
noun
(physics) the property of being isotropic; having the same value when measured in different directions [syn: isotropy, symmetry] [ant: anisotropy]

Definition of 'Isotropy'

From: GCIDE
  • 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. [1913 Webster]