1. (physics) having dimension zero; expressable as a pure number not needing any units
   "any ratio of masses is dimensionless"

Encyclopedia: Dimensionless

• frotteur
• froufrou
• frow
• froward
• frown
• frown line
• frown on
• frown upon
• frowning
• styptic
• styptic weed
• Styracaceae
• styracosaur
• styracosaurus
• styrax
• styrax family
• Styrax japonicum
• Styrax obassia
• Styrax texana
• styrene
• Styrofoam
• Styron
• Styx
• suable
• suasible