Definition of tidemark in English:



  • 1A mark left or reached by the sea on a shore at the highest point of a tide.

    • ‘It was, I felt, scenically enhanced by its proximity to the Dodder River, even though it was the cause of the water tidemarks on the internal walls, the area having flooded a few years back.’
    • ‘When a high tide occurs and the tidemark reaches beyond the normal beach line, this tends to create certain element of fear in the people.’
    • ‘In a review article, he concluded that physical factors were most important to determine the upper and lower limits of intertidal communities, but biological factors predominated in life between the tidemarks.’
    • ‘I have seen them feeding at the tidemark with snow buntings and pipits and they also find seeds in the marram hills.’
    1. 1.1British informal A grimy mark left on a surface, especially around the inside of a bath or washbasin, at the level reached by water.
      ‘the basin was ringed by a tidemark composed of specks of hair and shaving cream’
      • ‘Check that the tea/coffee tidemark is being rubbed off.’
      • ‘It rises up to the narrow tidemark and with a swift flick of his wrists, it squeaks to a stop.’
      • ‘In any case, I am far too busy breaking up concrete in my backyard and repainting the growing tidemark on my ceiling where the air-conditioner leaked.’
      • ‘I still have the clay tidemarks on my shoes (having worn them not my walking boots, as my walking boots are in a box somewhere).’
      • ‘‘There was no tidemark - just a few signs of damp because the dehumidifiers are still taking out two gallons a day,’ he added.’
      • ‘I wash my dishes weekly, bath tidemarks don't distract me.’