self locking

/ˌsɛlfˈlɑkɪŋ/
adjective
  1. Designed to lock automatically without needing manual action.
    • She bought a self-locking bike lock so she wouldn't forget to secure it.
    • The self-locking door on the cabinet closes securely with a simple push.
    • Many modern cars have self-locking doors that engage when you walk away.
  2. Of a mechanism or device, able to hold its position or prevent movement without external force after being set.
    • A self-locking clamp is essential for holding the workpiece steady during drilling.
    • The self-locking nut stays tight even under heavy vibration.
    • Engineers used a self-locking gear system to keep the ladder from sliding down.
Synonyms
noun
  1. A mechanism or feature that locks automatically.
    • He installed a self-locking on the gate so it would never be left open.
    • The suitcase has a self-locking that engages when the lid is closed.
    • The safe's self-locking activates after ten seconds of inactivity.
What does "self locking" mean? | whatsthatwordmean | whatsthatwordmean