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archegonium Line breaks: arche|go¦nium
Pronunciation: /ˌɑːkɪˈɡəʊnɪəm/

Definition of archegonium in English:

noun (plural archegonia ˌɑːkɪˈɡəʊnɪə)

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- 'chief' + gonos 'race'.

Definition of archegonium in:
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