Definition of cotidal line in English:

cotidal line

Syllabification: co·tid·al line
Pronunciation: /kōˈtīdl ˌlīn
 
/

noun

A line on a map connecting points at which a tidal level, especially high tide, occurs simultaneously.
More example sentences
  • Apply oceanographic principles for the development of co-tidal lines and tidal zoning.
  • Instead, as is shown on the map, most co-tidal lines lie at a marked angle to the longitudes and some are even perpendicular to them.
  • Co-tidal lines run in the southwest direction in the southern coast of Korea.

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Pronunciation: ˌmɪdəˈlɛs(ə)nt
adjective
middle-aged, but still maintaining youthful interests and activities