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experimental having to do with testing or experiments. [1/2 definitions]
probation a period of time for testing a person's ability, character, or behavior.
science a system of studying, testing, and experimenting on things in nature. Science is a search for general laws about how the world works. [1/2 definitions]
specimen a small amount of tissue or liquid from the body used for testing. [1/2 definitions]
trial the act or process of testing. [1/5 definitions]