sea level

noun

Definition of sea level

:the level of the surface of the sea especially at its mean position midway between mean high and low water

First Known Use of sea level

1806


SEA LEVEL Defined for English Language Learners

sea level

noun

Definition of sea level for English Language Learners

  • : the average height of the sea's surface


SEA LEVEL Defined for Kids

sea level

noun

Definition of sea level for Students

:the surface of the sea halfway between the average high and low tides


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