1. Of grey tinged with blue
   - blue-grey [Brit, Cdn], bluish-grey [Brit, Cdn], bluish-gray [US]

See also: achromatic, neutral

• foe
• foehn
• foeman
• Foeniculum
• Foeniculum dulce
• Foeniculum vulgare
• Foeniculum vulgare dulce
• foetal
• foetal abnormality
• foetal age
• foetal circulation
• foetal distress
• foetal monitor
• foetal movement
• foeticide
• foetid
• foetid bugbane
• foetid pothos
• foetology
• foetometry
• foetoprotein
• foetor
• foetoscope
• foetoscopy
• foetus