Enter a clue or pattern or both:
The Clue
Research-lab activity (15 letter answer)
The Answer
EXPERIMENTATION
Tags
Notes
The answer EXPERIMENTATION is so rare that it appears less than once every 2500 puzzles.
Related Clues
Trials
Definition
EXPERIMENTATION as a noun:
1. (experiment, experimentation) = the testing of an idea; "it was an experiment in living"; "not all experimentation is done in laboratories"
2. (experiment, experimentation) = the act of conducting a controlled test or investigation