cross-resistance(redirected from Cross resistance)
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Tolerance to a usually toxic substance as a result of exposure to a similarly acting substance: Some insects develop cross-resistance to insecticides.
1. immunologic resistance to the pathogenic effects of a microorganism due to previous exposure to another species or type having cross-reactive antigens.
2. (of an insect, bacterium, etc.) resistance to the effects of a pesticide, antibiotic, etc., due to previously acquired resistance to a similar substance.