1. One of four equal parts
   - fourth, one-quarter, quarter, fourth part, twenty-five percent, quartern

Derived forms: one-fourths

Type of: common fraction, simple fraction, vulgar fraction [Brit]

• petrify
• petrifying
• Petrine
• petrissage
• petrochemical
• petrochemistry
• Petrocoptis
• petrodollar
• Petrogale
• petroglyph
• Petrograd
• petrography
• petrol
• petrol bomb
• petrol engine
• petrol gage
• petrol gauge
• petrol line
• petrol pump
• petrol station
• petrol tank
• petrolatum
• petrolatum gauze
• petroleum
• petroleum future