1. syphilis

noun. ['ˈsɪfəlɪs'] a common venereal disease caused by the treponema pallidum spirochete; symptoms change through progressive stages; can be congenital (transmitted through the placenta).

Rhymes with Tertiary Syphilis

2. tertiary

adjective. ['ˈtɝːʃɝi, ˈtɝːʃiːˌɛri'] coming next after the second and just before the fourth in position.

3. Tertiary

noun. from 63 million to 2 million years ago.