Experimental \Ex*per`i*men"tal\, a. [Cf.F. exp['e]rimental.]

1. Pertaining to experiment; founded on, or derived from, experiment or trial; as, experimental science; given to, or skilled in, experiment; as, an experimental philosopher.

2. Known by, or derived from, experience; as, experimental religion.

Source: Webster's Revised Unabridged Dictionary (1913)