Final answer:
The term used when a sterilizer is tested for sterilization under actual use conditions is an in-use test.
Step-by-step explanation:
The term used when a sterilizer is tested for sterilization under actual use conditions is in-use test. This test is performed to determine whether a disinfectant solution actively used in a clinical setting is microbially contaminated. In the test, a sample of the used disinfectant is diluted and inoculated onto agar plates to monitor the growth of microbial colonies.