Definitions

1. noun

A geological period of time, especially during the Mesozoic era, characterized by the dominance of the first mammals and reptiles, including dinosaurs.

“The researcher focused her study on the Trias period, examining its impact on the evolution of life on Earth.”

2. noun

A three-part system or group.

“The company’s trias of departments worked together to meet the quarterly goals.”

3. noun

A three-part musical structure.

“The composer used a trias in her symphony, creating a beautiful and complex sound.”