1. Pertaining to one of the small sacs (as in a compound gland)
   - acinar, acinous, acinose

See also: acinus

• Freyr
• FRG
• Fri
• friability
• friable
• friar
• friar preacher
• friar's lantern
• friar's-cowl
• friary
• fribble
• fricandeau
• fricassée
• fricative
• fricative consonant
• Frick
• friction
• friction clutch
• friction match
• friction tape
• frictional
• frictionless
• Friday
• fridge
• fridge-freezer