'locknut' definitions:
Definition of 'locknut'
(from WordNet)
noun
Supplementary nut that is screwed down on a primary nut to prevent it from loosening [syn: locknut, safety nut]
Definition of 'locknut'
From: GCIDE
- locknut \locknut\, lock nut \lock nut\n. a supplementary nut that is screwed down on a primary nut to prevent it from loosening; a check nut. [WordNet 1.5]