Share this entry

archegonium Syllabification: ar·che·go·ni·um
Pronunciation: /ˌärkəˈɡōnēəm/

Definition of archegonium in English:

noun (plural archegonia-nēə)

The female sex organ in mosses, liverworts, ferns, and most conifers.
Example sentences
  • Antheridia formed on the dorsal and ventral surfaces of the wing, while archegonia formed on the ventral surface of the anterior cushion.
  • Dispersed by wind, these small spores germinate into small, freeliving, disc-shaped gametophytes that produce either archegonia - organs in which egg cells are formed - or sperm-producing antheridia.
  • Notwithstanding their general similarity, the archegonia of mosses differ externally from antheridia in having a longer neck and longer stalk.


Mid 19th century: modern Latin, from Greek arkhegonos, from arkhe- 'first' + gonos 'race'.

Definition of archegonium in:

Share this entry


What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day luxe
Pronunciation: lʌks
expensive and of high quality; luxurious