vol·vox (vŏlvŏks′, 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-2 in the Appendix of Indo-European roots.]
(click for a larger image)volvox
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