'Cotidal lines' definitions:
Definition of 'Cotidal lines'
From: GCIDE
- Cotidal \Co*tid"al\ (k?-t?d"al), a. Marking an equality in the tides; having high tide at the same time. [1913 Webster]
- Cotidal lines (Phys. Geog.), lines on a map passing through places that have high tide at the same time. [1913 Webster] Cotillon