0 in a way that is repeated after a particular period of time: --
1 repeatedly at regular times: --
With refinement of the analysis, it becomes possible to reconstruct the interactive system periodically as technology changes and the reconstructions themselves become obsolete.
This is not ideal for long-term experiments because the chamber must be replenished with air periodically, subjecting the seeds to abrupt changes in oxygen concentration.
It was then inverted several times periodically over the course of several days until all of the dye had dissolved.
She folds her arms, wrings her hands, periodically sighs.
But however diversified the production of narrated stereotypes may be, the narrator tends periodically to return to the culturally authoritative terms.
Experiment 3 and 4 simulated the effects of seeds attached to a seabird and periodically, but briefly, immersed in seawater each day.
Periodically this has facilitated the enactment of legislation, promoted by anti-party reformers, constraining parties.
His flow was anisotropic in the form of steady periodically arranged two-dimensional rolls.
