diatom

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Related to Diatomaceae: Diatomea

di·a·tom

 (dī′ə-tŏm′)
n.
Any of various microscopic one-celled or colonial heterokonts of the class Bacillariophyceae that are photosynthetic, have a silica cell wall made up of two interlocking parts, and form an important component of phytoplankton.

[New Latin diatoma, from Greek diatomos, cut in half, from diatemnein, to cut in half : dia-, dia- + temnein, to cut; see tem- in Indo-European roots.]

diatom

(ˈdaɪətəm; -ˌtɒm)
n
(Microbiology) any microscopic unicellular alga of the phylum Bacillariophyta, occurring in marine or fresh water singly or in colonies, each cell having a cell wall made of two halves and impregnated with silica. See also diatomite
[C19: from New Latin Diatoma (genus name), from Greek diatomos cut in two, from diatemnein to cut through, from dia- + temnein to cut]

di•a•tom

(ˈdaɪ ə təm, -ˌtɒm)

n.
any of numerous mostly marine algae of the class Bacillariophyceae (phylum Chrysophyta), each one-celled alga being enclosed in an intricately patterned double shell of silica, one shell fitting over the other like a box lid.
[1835–45; < New Latin Diatoma orig. a genus name, feminine n. based on Greek diátomos cut in two. See dia-, -tome]

di·a·tom

(dī′ə-tŏm′)
Any of various microscopic one-celled algae that live in water, have hard shells composed mostly of silica, and often live in colonies. Diatom shells are made of two symmetrical parts called valves.

diatomaceous (dī′ə-tə-mā′shəs) adjective
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.diatom - microscopic unicellular marine or freshwater colonial alga having cell walls impregnated with silicadiatom - microscopic unicellular marine or freshwater colonial alga having cell walls impregnated with silica
phytoplankton - photosynthetic or plant constituent of plankton; mainly unicellular algae
alga, algae - primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves
Bacillariophyceae, class Bacillariophyceae, class Diatomophyceae, Diatomophyceae - marine and freshwater eukaryotic algae: diatoms
Translations
References in periodicals archive ?
Five phytoplankton taxonomic classes (Cyanobacteria, Diatomaceae, Chlorophyceae, Euglenophyceae and Cryptophyceae) totaling 28 taxa were found in the reservoirs.
Environmental variables for CCA were total nitrogen, soluble phosphorus, and pH; diversity dataset was restricted to Nostocaceae, Oscillatoriaceae, Diatomaceae, Naviculaceae, Closteriaceae, and Zygnemataceae families.