A stage of syphilis that occurs after the secondary stage, characterized by more severe symptoms affecting organs, including the heart and brain.

तृतीयक सिफिलिस

English Usage: "He was diagnosed with tertiary syphilis and required immediate medical attention."

Hindi Usage: "उन्हें तृतीयक सिफिलिस का निदान हुआ और उन्हें तत्काल चिकित्सकीय ध्यान की आवश्यकता थी।"