‖ ˌparthenogoˈnidium Bot.
[mod.L., f. Gr. παρθένος virgin + gonidium.]
A gonidium in certain algæ, as Volvox, by which they are reproduced asexually.
| 1895 Kerner & Oliver Nat. Hist. Plants II. 634 Daughter⁓colonies [of Volvox Globator] are developed from special cells, usually eight in number, called parthenogonidia,..larger than the ordinary vegetative cells. |