I. ˈ ̷ ̷ˌ ̷ ̷ noun
( -s )
Etymology: lock out
: an act of locking out or the condition of being locked out: as
a. : the withholding of employment by an employer and the whole or partial closing of his business establishment in order to gain concessions from employees — compare strike
b. : involuntary closure of secure premises (as a bank vault) due to failure of an intricate time-lock device either by chance or as a result of tampering
II. adjective
: serving to prevent operation of a device or part of it
the lockout circuit breaker operates when there is an excessive current flowing — Ernest Venk & William Landon