Definitions for "Double tide"
Keywords:  gulder, agger, minima, maxima, tide
Two peaks of high water occur close together during the high water period of the tidal cycle. During the low water period there are usually two troughs (or dips) one immediately after the other.
(or agger, double high water, gulder high water consisting of two maximums of nearly the same height separated by a relatively small depression, or a low water consisting of two minimums separated by a relatively small elevation.
A double-headed TIDE; that is, a HIGH WATER consisting of two maxima of nearly the same height separated by a relatively small DEPRESSION, or a LOW WATER consisting of two minima separated by a relatively small ELEVATION.