1. Plural of periphyton; organisms (algae, bacteria, protozoa, and other microorganisms) that attach to and grow on submerged surfaces in aquatic environments.
Usage: biology; ecology; technical term; also called aufwuchs

Examples

• Periphytons form a thin layer on rocks and plants in freshwater streams.
• Scientists study periphytons to assess water quality and ecosystem health.
• The periphytons on the aquarium glass indicate the presence of algae and bacteria.
• Fish often graze on periphytons attached to submerged vegetation.
• Periphytons play an important role in aquatic food webs as a primary food source.