| oscillo-, oscill- (Latin: swing, vibrate; from oscillum, a diminutive form of oso[ris] "mouth, face", meaning "small face").By extension, "small mask of the god Bacchus" that was hung in Roman vineyards to honor the god of wine while scaring off grape-eating birds as it vibrated and swang in the breeze. oscillate: oscillation: oscillational: oscillator: oscillatory: oscillogram: oscillograph: oscillographic: oscillographical: oscillography: oscillometer: oscillometric: oscillopsia: oscilloscope: oscilloscopic: |