F.K.Q.C.P.I. Fellow of the King's and Queen's College of Physicians in Ireland.
fl., floruit=Flourished; Florin.
Flor., Fla., Fa. Florida.
F.L.S. Fellow of the Linnæan Society.
F.M. Field-marshal.
fm. Fathom.
F.O. Field-officer; Foreign Office; Full Organ.
fo., fol. Folio.
f.o.b. Free on board.
F.P. Fire-plug.