- Extreme value theory
- Extremophiles
- Extrinsic semiconductor
- Extrusion
- Extrusion moulding
- Extrusion welding
- Extrusive
- Exudate
- Eye bolt
- Eye chart
- Eye disease
- Eye drops
- Eye examination
- Eye injury
- Eye movements
- Eye pattern
- Eye protection
- Eye strain
- Eye surgery
- Eye tracking
- Eyelid
- Eyring equation
- Ezetimibe
- Ezh2
- F number
- F region
- F-centers
- F-distribution
- F-number
- F-score
- F-test
- F-test of equality of variances
- F1 hybrid
- F1 score
- FAB
- FABP
- FACS
- FAD
- FADD
- FADEC
- FAP
- FBS
- FBX
- FC receptor
- FC region
- FCAW
- FCC
- FCS
- FCVS
- FDD
- FPGA
- FPGAs
- FPLC
- FPSOs
- FPTAS
- FPU
- FQDN
- FR-2
- FR-4
- FRACAS
- FRAP
- FRC
- FRP
- FSH
- FSHR
- FSK
- FSS
- FTE
- FTIR
- FTO gene
- FTP
- FTP server
- FTTH
- FTTX
- FWER
- FWHM
- FXR
- FaaS
- Fab
- Fab labs
- Fabric
- Fabric structures
- Fabrication
- Fabrication and testing
- Fabry disease
- Fabs
- Facade
- Facadism
- Face
- Face ID
- Face detection
- Face seal
- Face shields
- FaceNet
- Facebook Like button
- Faceplate
- Facet joint
- Faceted classification
- Faceting
- Facets