naiads

/N AY1 AE0 D Z/
noun
  1. 1

    A female deity (nymph) associated with water, especially a spring, stream, or other fresh water.

  2. 2

    The aquatic larva (nymph) of a dragonfly or damselfly.

  3. 3

    Any of various aquatic plants of the genus Najas.

Source: https://en.wiktionary.org/wiki/naiad, https://en.wiktionary.org/wiki/naiads