| 1. | a test, esp. one conducted in a laboratory, to determine how much pressure, tension, wear, or the like a given product or material can withstand. |
| 2. | Medicine/Medical. a test of cardiovascular health made by recording heart rate, blood pressure, electrocardiogram, and other parameters while a person undergoes physical exertion. |
[stres-test] 
| to subject to a stress test. |
stress test n.
A graded test to measure an individual's heart rate and oxygen intake while undergoing strenuous physical exercise, as on a treadmill.