Header image of wall of bricks Open menu Close menu


Unequal, asymmetrical, dissimilar.

Greek anisos, unequal.

Terms are the negatives, using an‑ (see a‑1), of words in iso‑. Examples are anisotropic (from Greek tropē, turn, turning), having a physical property that is not the same in every direction; anisometropia (Greek metron measure, plus ōps, ōp‑, eye), inequality of refractive power of the eyes; anisocytosis (Greek kutos, vessel), abnormal variation in the size of cells, especially of red blood corpuscles; anisogamy (Greek gamos, marriage), sexual reproduction by the fusion of dissimilar gametes; and anisophyllous (Greek phullon, leaf), having leaves of different shapes or sizes on either side of a shoot.

Copyright © Michael Quinion 2008–. All rights reserved. Your comments are very welcome.