WordReference Random House Unabridged Dictionary of American English © 2026
co•tid•al
(kō tīd′l),USA pronunciation adj.
- Oceanographypertaining to a coincidence of tides.
- Oceanography(on a chart or map) indicating a line connecting points at which high tide occurs at the same time.
- co- + tidal 1825–35
'cotidal' also found in these entries (note: many are not synonyms or translations):