Main Entry: ex·per·i·men·tal

Pronunciation: \ik-ˌsper-ə-ˈment-^əl also -ˌspir-\

Function: adjective

1 : of, relating to, or based on experience or experiment
2 : founded on or derived from experiment <the heart of the experimental method is the direct control of the thing studied—B. F. Skinner>
3 of a disease : intentionally produced especially in laboratory animals for the purpose of study <experimental diabetes>

—ex·per·i·men·tal·ly \-^əl-ē\ adverb