the process of testing various ideas, methods etc to find out how good or effective they are
experimentation with computer-assisted language learning
the process of performing scientific tests to find out if a particular idea is true or to obtain more information:
The issue of animal experimentation is an emotive subject.
when you try doing something to find out what it feels like, for example having sex or using illegal drugs
experimentation with cannabis
There is often a period of sexual experimentation during adolescence.