The property of being directionally dependent.(noun)
The degree to which this property is exhibited.(noun)
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Use "anisotropy" in a sentence
"Quantum uncertainty fluctuations in the field coupled with local regions of curvature, where this reheating had some measure of inhomogeneity, or as observed from a central location an anisotropy, that is frozen out in what we observe now."
"In a paper published earlier this month in The Astrophysical Journal they confirmed that more cosmic rays seem to come from certain directions-an observation known as anisotropy-in the Earth's southern hemisphere too."
"We show that the CuO chains of the orthorhombic lattice are not responsible for this anisotropy, which is therefore an intrinsic property of the CuO2 planes."