Dictionary
cross-tol•er•ance
Pronunciation: (krôs'tol'ur-uns, kros'-), [key]—
n. Physiol.
the resistance to one or more effects of a substance because of tolerance to a pharmacologically similar substance:
a cross-tolerance of some alcoholics to anesthetics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.