1. Supplementary nut that is screwed down on a primary nut to prevent it from loosening
   - locknut

Derived forms: safety nuts

Type of: nut

• gypsum
• gypsum board
• gypsy
• gypsy cab
• gypsy dancing
• gypsy moth
• Gypsy Rose Lee
• gypsyweed
• gypsywort
• gyral
• gyrate
• gyration
• gyrator
• gyratory
• gyre
• gyrfalcon
• Gyrinidae
• gyro
• gyro horizon
• gyrocompass
• gyromagnetic
• gyromitra
• Gyromitra brunnea
• Gyromitra californica
• Gyromitra esculenta