experimentalist

WordReference Random House Unabridged Dictionary of American English © 2026

ex•per•i•men•tal•ism  (ik sper′ə men′tl iz′əm), n. 

1. doctrine or practice of relying on experimentation;
   empiricism.
2. fondness for experimenting or innovating:
   The psychologists' children were raised in an atmosphere of vigorous experimentalism.

• experimental + -ism 1825–35

ex•per′i•men′tal•ist, n.