Those disturbances in the planetary motions, caused by their reciprocal attraction in definite periods.
·pl of <<Inequality>>. ...
Webster's Dictionary of the English Language
·adj ·Alt. of <<Periodical>>. II. Periodic ·adj Pertaining to, derived from, or designating, the hi...
The interval of time which elapses from the moment when a planet or comet leaves any point in its or...
The Sailor's Word-Book