(ש"ע) סוג אצה

n. freshwater green algae that forms hollow spheres of multicellular communities

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Noun
1. type genus of the Volvocaceae; minute pale green flagellates occurring in tiny spherical colonies; minute flagella rotate the colony about an axis
(synonym) genus Volvox
(hypernym) protoctist genus
(member-holonym) Volvocaceae, family Volvocaceae

nm. volvox, freshwater green algae that forms hollow spheres of multicellular communities

(n.)
A genus of minute, pale-green, globular, organisms, about one fiftieth of an inch in diameter, found rolling through water, the motion being produced by minute colorless cilia. It has been considered as belonging to the flagellate Infusoria, but is now referred to the vegetable kingdom, and each globule is considered a colony of many individuals. The commonest species is Volvox globator, often called globe animalcule.