Definitions for "Diatoms"
any of a number of related microscopic algae, one-celled or in colonies, whose walls consist of two parts or valves and contain silica.
Single-celled creatures with hard, silica-based shells. They look like a golden powder coating the tank to the naked eye.
single-celled or colonial algae that have glass cell walls and are usually colored golden brown
this class of microalgae is responsible for causing bloom in seawater, usually in winter-spring. A large quantity of diatoms causes cloudy water of an unusual colour.