wader

/W EY1 D ER0/
noun
  1. 1

    One who wades.

  2. 2

    (chiefly in the plural) A waterproof boot that comes up to the hip, used by fishermen, etc.

  3. 3

    A long-legged bird associated with wetland or coastal environments.

Source: https://en.wiktionary.org/wiki/wader