| a gadget; dingus; thingumbob. |
| the offspring of a zebra and a donkey. |
| archegonium (är'kĭ-gō'nē-əm) Pronunciation Key
Plural archegonia 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. |