Definition of syphilophobia in US English:

syphilophobia

(also syphiliphobia)

noun

Medicine
historical
  • Irrational or excessive fear of becoming or being infected with syphilis; the delusional belief that one has syphilis; an instance of this.

Origin

Mid 19th century; earliest use found in Robley Dunglison (1798–1869), physician and medical writer. In some forms from French syphiliphobie, with remodelling after words in -phobia.

Pronunciation

syphilophobia

/ˌsɪfɪləˈfəʊbɪə/