oogonium Syllabification: (o·o·go·ni·um)Pronunciation: /ˌōəˈgōnēəm/Definition of oogonium noun (plural oogonia /-nēə/) 1 Botany the female sex organ of certain algae and fungi, typically a rounded cell or sac containing one or more oospheres. 2 Biology an immature female reproductive cell that gives rise to primary oocytes by mitosis. Derivatives oogonialPronunciation: /-nēəl/ adjective Origin: mid 19th century: from oo- 'of an egg' + Greek gonos 'generation' + -iumoogonium in other Oxford dictionaries Definition of oogonium in the British & World English dictionary
