germarium
/dʒəːˈmɛːrɪəm/Zoology
noun
In certain invertebrates: the ovary; specifically the part of the ovary that contains developing egg cells or cells giving rise to these (especially, in flatworms, as contrasted with the vitellarium).
Origin
Mid 19th century; earliest use found in Thomas Huxley (1825–1895), biologist and science educationist. From germ + -arium, after ovarium. Compare German Eierkeimstock.