n. pl. ar·che·go·ni·a (-nē-ə) A multicellular, often flask-shaped, egg-producing organ occurring in mosses, liverworts, ferns, and most gymnosperms. [New Latin, from Greek arkhegonos, original : arkhe-, arkhi-, archi- + gonos, offspring; see genə- in the Appendix of Indo-European roots.] ar′che·goni·al adj. ar′che·goni·ate (-ĭt) adj. |
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