WordWeb Online

1. The time between one event, process, or period and another
   "meantime the socialists are running the government"
   - interim, meanwhile, lag

1. During the intervening time
   "meantime he was attentive to his other interests"; "in the meantime the police were notified"
   - meanwhile, in the meantime

1. (astronomy) time based on the motion of the mean sun (an imaginary sun moving uniformly along the celestial equator)
   - mean solar time

Derived forms: meantimes, mean times

Type of: interval, time interval, time unit, unit of time

Encyclopedia: Mean time