ex·per·i·men·tal 
/ɪkˌsperəˈmɛntl̟/ adjective
/ɪkˌsperəˈmɛntl̟/ adjective [more experimental; most experimental] 1 : relating to a scientific experiment or to scientific experiments in general
▪ experimental data/evidence ▪ experimental approaches/conditions ▪ experimental animals [=animals that are used in experiments] 2 : made or done in order to see how well something works
▪ an experimental treatment ▪ experimental drugs/techniques ▪ Plans for new city bus routes are still in the experimental stage. [=they are not final yet; they are being tested] ▪ The fuel is being used on an experimental basis. 3 : using a new way of doing or thinking about something
▪ experimental art/films
▪ experimental data/evidence ▪ experimental approaches/conditions ▪ experimental animals [=animals that are used in experiments]
▪ an experimental treatment ▪ experimental drugs/techniques ▪ Plans for new city bus routes are still in the experimental stage. [=they are not final yet; they are being tested] ▪ The fuel is being used on an experimental basis.
▪ experimental art/films
— ex·per·i·men·tal·ly adverb
▪ The theory was only recently experimentally confirmed. [=confirmed in an experiment] ▪ The technique/fuel is being used experimentally.
▪ The theory was only recently experimentally confirmed. [=confirmed in an experiment] ▪ The technique/fuel is being used experimentally.
