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 (vŏl′vŏks′, vôl′-)
Any of various one-celled flagellate freshwater green algae of the genus Volvox that form hollow mucilaginous spherical colonies of several hundred cells.

[New Latin Volvox, genus name, from Latin volvere, to roll; see wel- in Indo-European roots.]


(Microbiology) any freshwater flagellate protozoan of the genus Volvox, occurring in colonies in the form of hollow multicellular spheres
[C18: from New Latin, from Latin volvere to roll]


(ˈvɒl vɒks)

any colonial freshwater green algae of the genus Volvox, forming a hollow sphere of flagellated cells.
[1790–1800; < New Latin, = Latin volv(ere) to turn, roll + -ōx (as in ferōx)]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.volvox - type genus of the VolvocaceaeVolvox - type genus of the Volvocaceae; minute pale green flagellates occurring in tiny spherical colonies; minute flagella rotate the colony about an axis
protoctist genus - any genus of Protoctista
family Volvocaceae, Volvocaceae - unicellular or colonial biflagellate free-swimming flagellates
References in periodicals archive ?
Modified Volvox channelrhodopsin-1 (mVChR1), developed by Professor Hiroshi Tomita, at present on the Faculty of Engineering in Iwate University, and his colleagues, is an engineered photoreceptive ion channel with the capability to respond to broad wavelengths of lights, created by modifying channelrhodopsins) found in green algae.
The processes observed in the Volvox embryo are similar to the process of gastrulation in animal embryos--which biologist Lewis Wolpert calls "the most important event in your life.
Volvox Group, which is based in Gildersome Leeds, is a company with expertise in managing automotive, lighting and industrial consumable products.
2 Chlorophyceae: Volvox, Ulothrix, Stichococcous, Chaetophora, Radiotillum, Microspora, Stigeoclonium, Protococcus, Oedogonium, Pediastrum, Rhizoclonium, Ankistrodesmus, Sclenastrum, Kirchnorilla, Mougeotiopsis, Trachelomonas and Euglena.
To answer the question, James Umen and colleagues at the Salk Institute for Biological Studies in La Jolla, California, examined related algae - the single-celled Chlamydomonas reinhardtii and the multicellular Volvox carteri, which diverged from each other 200 million years ago.
The company is deploying a fleet of more than 17 specialty vessels of which the Volvox Terranova HAM 318 trailing suction hopper dredger is the largest.
Still other microorganisms, such as the Volvox algae, are covered in flexible, undulating flagella whose coordinated waves add up to net motion.
Colonial organisms such as the green alga Volvox developed modified internal concentrations of nutrients and gases.