Vitellarium

Origin

Full definition of vitellarium

Noun

1. A type of gland, in flatworms and similar organisms, that secretes yolk.
• July 8, 2015, , Convergent Reduction of Ovariole Number Associated with Subterranean Life in Beetles, Germarium and vitellarium are distinct and the latter contains one or two small, immature basal oocytes.