| Word | Definitions | Synonyms |
|---|---|---|
| experimental | (adjective) relating to or based on experiment | - |
| (adjective) relying on observation or experiment | Synonyms: data-based, observational | |
| (adjective) of the nature of or undergoing an experiment | - | |
| interim | (adjective) serving during an intermediate interval of time | - |
| superimposed | (adjective) with one layer on top of another | Synonyms: layered |
| (adjective) placed on or over something else | Synonyms: overlying |