noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The community of organisms living in the sandy, moist habitat along a shoreline. uncountable

   "Rotifers also are present in the psammon, the sandy habitat along the wet reaches of shorelines."

Example

More examples

"Rotifers also are present in the psammon, the sandy habitat along the wet reaches of shorelines."

Etymology

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

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.