Word Study
anisotropic
CIDE DICTIONARY
anisotropic, a. [Gr. unequal + a turning, to turn.].
Not isotropic; having different properties in different directions; thus, crystals of the isometric system are optically isotropic, but all other crystals are anisotropic. [1913 Webster]
OXFORD DICTIONARY
anisotropic, adj. having physical properties that are different in different directions, e.g. the strength of wood along the grain differing from that across the grain (opp. ISOTROPIC).
Derivative
anisotropically adv. anisotropy n.
Etymology
AN-(1) + ISOTROPIC
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