| Abbreviation | Definition |
|---|---|
| FLASH | Family Life And Sexual Health |
| FLCAO | Factorized Linear Combination of Atomic Orbitals |
| FLICE | Femtosecond Laser Irradiation and Chemical Etching |
| FLICE | fs Laser Irradiation and Chemical Etching |
| FLO | Flow Indacation Open |
| FLORIDA | Flowers love observing Rhythms In Designated Atmosphere |
| Fm | Fermium |
| FMCC | Florida Minerals and Chemistry Council |
| FMD | Full Material Disclosure |
| FMN | Flavin mono nucleotide |
| FO | Fox Operator |
| FODMAP | Fermenatble Oligo-,Di-,Monosaccharides And Polyols |
| FODMAP | Fermentable, Oligo-, Di-, Mono-saccharides And Polyols |
| FOS | Fructo-OligoSaccharide |
| FOSAMAX | Alendronic acid |
| FOW | Festivals Of the World |
| FPD | Flame Photometric Detection |
| FPF | Fine Particle Fraction |
| FPOM | Fine Particulate Organic Matter |
| FQ | fluoroquinolone |