syphilis : Idioms & Phrases

• noun the first stage; characterized by a chancre at the site of infection
  

WordNet

• (Med.), the initial stage of syphilis, including the period from the development of the original lesion or chancre to the first manifestation of symptoms indicative of general constitutional infection.

Webster 1913

• noun the second stage; characterized by eruptions of the skin and mucous membrane
  

WordNet

• (Med.), the second stage of syphilis, including the period from the first development of constitutional symptoms to the time when the bones and the internal organs become involved.

Webster 1913

• noun the third stage; characterized by involvement of internal organs especially the brain and spinal cord as well as the heart and liver
  

WordNet

• (Med.), the third and last stage of syphilis, in which it invades the bones and internal organs.

Webster 1913