Adam, by sad experiment I know
How little weight my words with thee can find.
Milton.
Ex*per"i*ment (?), v. t. [imp. & p. p. Experimented; p. pr. & vb. n. Experinenting.] To make experiment; to operate by test or trial; -- often with on, upon, or in, referring to the subject of an experiment; with, referring to the instrument; and by, referring to the means; as, to experiment upon electricity; he experimented in plowing with ponies, or by steam power.
Ex*per"i*ment, v. t. To try; to know, perceive, or prove, by trial or experience. [Obs.] Sir T. Herbert.
Ex*per`i*men"tal (?), a. [Cf.F. expérimental.] 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.