Not having properties that are the same in all directions. [aniso- + G. tropos, a turning]
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an·iso·trop·ic (.)an-.ī-sə-'träp-ik adj exhibiting properties with different values when measured in different directions: not isotropic <an \anisotropic crystal>
an·isot·ro·pism -.ī-'sä-trə-.piz-əm n
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an·iso·tro·pic (an-i″so-troґpik) [aniso- + tropic] 1. having unlike properties in different directions, as in any unit lacking spherical symmetry. 2. doubly refracting or having a double polarizing power.Medical dictionary. 2011.