yọyínyọyín noun /jɔ̄.jĩ́.jɔ̄.jĩ́/
Definitions
  1. dentist
Etymology
Reduplication of yọyín (“to extract teeth”, literally “tooth remover”).
Component words
yọyínto extract teeth
Source: Wiktionary, where this word is spelled “yọyinyọyin”. Reference: en-yọyinyọyin-yo-noun-9i5hCDTy