'Experimentally' definitions:

Definition of 'experimentally'

From: WordNet
adverb
In an experimental fashion; "this can be experimentally determined" [syn: experimentally, by experimentation, through an experiment]

Definition of 'Experimentally'

From: GCIDE
  • Experimentally \Ex*per`i*men"tal*ly\, adv. By experiment; by experience or trial. --J. S. Mill. [1913 Webster]