trialist

Meanings

1. An advocate of trialism, especially with reference to the proposed creation of a state comprising Austria, Hungary, and a Slavic region.

1. Involving three elements; especially, pertaining to a potential state comprising Austria, Hungary, and a Slavic region.

1. A person who takes part in a clinical trial, especially as a researcher.
2. A person who tries a product for the first time (as opposed to a regular purchaser); a person who participates in the trial of a new product.
3. An athlete who participates in a trial (competition to select players for a team); a person who enters a dog (especially a sheepdog) in a competition.
4. A person standing trial in a court of law, especially one of a group of defendants in a high-profile case.

Etymology

From trial (“three”) + -ist.