n. The property of being identical, or having the same physical properties, in all directions.
the GNU version of the Collaborative International Dictionary of English
n. Uniformity of physical properties in all directions in a body; absence of all kinds of polarity; specifically, equal elasticity in all directions.
The Century Dictionary and Cyclopedia
n. The state or property of being isotropic.
n. In embryology, the property whereby all the parts of the unsegmented egg are alike capable of giving rise to any portion of the embryonic body: opposed to anisotropy.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. (physics) the property of being isotropic; having the same value when measured in different directions
Word Usage
"(Anisotropy is the opposite of isotropy, which is the condition of having the same value when measured from different directions.)"