Borrowed from English phenol. By surface analysis, ffeno- (“pheno-”) + -ol
ffenol m (plural ffenolau, not mutable)
- (organic chemistry) phenol[1]
- ^ Delyth Prys, J.P.M. Jones, Owain Davies, Gruffudd Prys (2006) Y Termiadur: termau wedi'u safoni; standardised terminology[1] (in Welsh), Cardiff: Awdurdod cymwysterau, cwricwlwm ac asesu Cymru (Qualifications curriculum & assessment authority for Wales), →ISBN, page 187
