experimental

ex|peri|men|tal /ɪksp'erɪm'entəl/
1 [ADJ]
Something that is experimental is new or uses new ideas or methods, and might be modified later if it is unsuccessful.
...an experimental air conditioning system...
The technique is experimental, but the list of its practitioners is growing.
2 [ADJ] ADJ n
Experimental means using, used in, or resulting from scientific experiments.
...the main techniques of experimental science.
experimentally [ADV] ADV with v
...an ecology laboratory, where communities of species can be studied experimentally under controlled conditions.
3 [ADJ] usu ADJ n
An experimental action is done in order to see what it is like, or what effects it has.
The British Sports Minister is reported to be ready to argue for an experimental lifting of the ban.
experimentally [ADV] ADV with v
This system is being tried out experimentally at many universities...