nonexposed
adjective (also non-exposed) uk/ˌnɒn.ɪkˈspəʊzd/ us/ˌnɑːn.ɪkˈspoʊzd/
未暴露（于有害物等）的
not having experienced or been in the same place as something that could be harmful or unpleasant
Cholesterol levels in the exposed group were much higher than in the nonexposed one. 暴露组的胆固醇水平远高于未暴露组。
Households in the nonexposed area were able to continue to use drinking water.
- More examples
- The study looked at whether earthquake-exposed subjects experienced more severe depression than the nonexposed subjects.
- Smokers exposed to asbestos dust have nine times the risk of non-exposed smokers of developing lung cancer.
- Men who had been exposed to the Holocaust had a much greater risk of cancer than the nonexposed group.