Definition of syphilid in US English:

syphilid

(also syphilide)

noun

Medicine
  • Any of the various types of skin lesion or eruption seen in secondary or tertiary syphilis. Frequently with distinguishing word, typically describing the nature of the lesion or eruption.

Origin

Early 19th century. From syphilis + -id, after French syphilide.

Pronunciation

syphilid

/ˈsɪfɪlɪd/