[ kraws-ri-zis-tuh ns, kros- ]
/ ˈkrɔs rɪˈzɪs təns, ˈkrɒs- /

noun Biology.

immunologic resistance to the pathogenic effects of a microorganism because of previous exposure to another species or type having cross-reactive antigens.
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.

Nearby words

  1. cross-reacting agglutinin,
  2. cross-reacting antibody,
  3. cross-reaction,
  4. cross-refer,
  5. cross-reference,
  6. cross-section,
  7. cross-sectional study,
  8. cross-sell,
  9. cross-slide,
  10. cross-staff

Origin of cross-resistance

First recorded in 1945–50 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019