1. trialist - Noun
2. trialist - Adjective
trialist (plural trialists)
An advocate of trialism, especially with reference to the proposed creation of a state comprising Austria, Hungary, and a Slavic region.
trialist (not comparable)
Involving three elements; especially, pertaining to a potential state comprising Austria, Hungary, and a Slavic region.
trialist (plural trialists)
(American spelling) A person who takes part in a trial (of a drug etc.)
I was a dualist, now I am a trialist! Source: Internet
The count finally signed the trialist proclamation after heavy pressure from the king on 23 October 1918. one day after the king. Source: Internet