cross resistance

cross-resistance

[kraws-ri-zis-tuhns, kros-]
noun Biology.
1.
immunologic resistance to the pathogenic effects of a microorganism because of previous exposure to another species or type having cross-reactive antigens.
2.
resistance to the effects of a substance, as that of an insect population to an insecticide or a bacterial strain to an antibiotic, stimulated by exposure and adaptation to a similar or related substance.

Origin:
1945–50

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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