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Vinony

tideline

noun

  1. ocean phenomenon
  2. Discolorations appearing as irregular dark lines on paper or board, created by a dried liquid
L43795 on Wikidata ↗

Wiktionary

noun

Etymology: From tide + line.

  1. A line of floating debris, seaweed etc. that marks the boundary between two surface currents.

    “And last year, at 5:26 a.m. on August 10, a whole mountainside toppled into the tideline of the shrunken Sawyer Glacier, not far from the Alaskan capital, Juneau. The impact jetted a tsunami a staggering 500 meters up the walls of the fjord.”