zeeniveau (zn):
Level of the ocean's surface (especially that halfway between mean high and low tide); used as a standard in reckoning land elevation or sea depth
sea level
Via: Ensyns.nl
zeeniveau (zn):
sea level(nl) —.
(de) Höhe des Wasserstandes des Meeres.
Via: Dbnary en WikiWoordenboeken
Via: Memodata.com