Definitions

1. noun

A three-part or triple structure, such as a three-part song or a three-act play.

“The composer wrote a triuris for the orchestra, featuring a soloist in each part.”

2. noun

A three-part or triple formation in botany, such as a three-angled or three-lobed leaf.

“The triuris of the plant’s leaf structure made it an interesting specimen for study.”