Pronunciation: (ik-sper"u-men'tl), [key]
1. pertaining to, derived from, or founded on experiment: an experimental science.
2. of the nature of an experiment; tentative: The new program is still in an experimental stage.
3. functioning as an experiment or used for experimentation: an experimental airplane.
4. based on or derived from experience; empirical: experimental knowledge.
something that is experimental.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.