A person who experiments.

plural of experimenter

The act of experimenting; practice by experiment. / (sciences) A set of actions and observations, performed to verify or falsify a hypothesis or to research a causal relationship between phenomena.

in the manner of an experiment

Pertaining to or founded on experiment. / (sciences) Serving to be experimented upon; used in an experiment. / Serving as an experiment; serving to experiment. / Experiential, empirical.

The subject of an experiment.

plural of experimentation

An experimental practice or tendency, especially in the arts / (philosophy) An empirical or pragmatic approach which emphasizes the importance of experimentation

plural of experimentator

(archaic) An experimenter.