• Psammon

    Origin

    - + psammo + -, to be analogous to plankton.

    Full definition of psammon

    Noun

    psammon

    (uncountable)
    1. (ecology) The community of organisms living in the sandy, moist habitat along a shoreline.
      • 2014, James H. Thorp, D. Christopher Rogers, Thorp and Covich's Freshwater Invertebrates: Ecology and General Biology, Rotifers also are present in the psammon, the sandy habitat along the wet reaches of shorelines.
    © Wiktionary