Definitions

1. noun

A painless, firm, or hard ulcer, especially one resulting from a syphilitic infection in its primary stage.

“The doctor examined the chancre on the patient’s lip and confirmed the diagnosis of syphilis.”

2. noun

A defect or flaw in something, such as a piece of wood or a part of a machine.

“The engineer found a chancre in the engine’s gear system and had to replace it.”