Pertaining to a third or occurring every third day.

Relating to or characterized by fever that recurs every third day.

हर तीसरे दिन लौटने वाले बुखार से संबंधित

English Usage: The patient was diagnosed with a tertian fever, which necessitated immediate attention.

Hindi Usage: मरीज को तीसरे दिन का बुखार होने का निदान किया गया, जिसे तात्कालिक ध्यान की आवश्यकता थी।