| Scope Note |
A physical property showing different values in relation to the direction in or along which the measurement is made. The physical
property may be with regard to thermal or electric conductivity or light refraction. In crystallography, it describes crystals
whose index of refraction varies with the direction of the incident light. It is also called acolotropy and colotropy. The
opposite of anisotropy is isotropy wherein the same values characterize the object when measured along axes in all directions.
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