fail to keep up with another or others in movement or development
they waited for Tim who was lagging behind
a period of time between one event and another
a time lag between infection and symptoms
a retardation in an electric current or movement
enclose or cover (a boiler, pipes, etc.) with material that provides heat insulation
all pipes and tanks in the attic should be lagged
a lagged hot-water tank
arrest or send to prison
they were nearly lagged by the constables
a person who has been frequently convicted and sent to prison
both old lags were sentenced to ten years' imprisonment