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

Terms in your insurance contract describing a possible category of excluded services under the plan. Each plan may have different criteria to define what it considers experimental and investigational. This can be challenged.

an unproven (or even untested) technique or procedure; note that certain experimental treatments are commonly used in the management of prostate cancer

Investigational, unproven.

Early stages of development. Some have provisional or preliminary recognition, but others do not seek or achieve registry recognition.

Works that seek to expand traditional moving image form, structure, and content; usually subjective in approach, largely non-commercial, and often made by a single filmmaker or a small group. Includes video art and so-called "underground" films. Also known as avant-garde works. For real-time networked media, select Videoconference or webcast.

the stage during which individuals become aware that a substance makes them feel good.