-tropy


Also found in: Medical.

-tropy

suff.
The state of turning in a specified way or from a specified stimulus: thixotropy.
[Greek -tropiā, from -tropos, -tropous.]

-tropy

or

-tropism,

a combining form occurring in abstract nouns that correspond to adjectives ending in -tropic or -tropous: isotropy.
[< Greek -tropia. See -trope, -y3]