[ad_1] noun, plural ar·che·go·ni·a [ahr-ki-goh-nee-uh] /ˌɑr kɪˈgoʊ ni ə/. Botany.
- the female reproductive organ in ferns, mosses, etc.
noun plural -nia (-nɪə)
- a female sex organ, occurring in mosses, spore-bearing vascular plants, and gymnosperms, that produces a single egg cell in its swollen base
- The egg-producing organ occurring in bryophytes (such as mosses and liverworts), ferns, and most gymnosperms. The archegonium is a multicellular, often flask-shaped structure that contains a single egg. Compare antheridium.