The Collaborative International Dictionary
Oophore
Oophore \O"["o]*phore\, n. [Gr. ? egg-bearing; w,'o`n an egg + fe`rein to bear.] (Bot.) An alternately produced form of certain cryptogamous plants, as ferns, mosses, and the like, which bears antheridia and archegonia, and so has sexual fructification, as contrasted with the sporophore, which is nonsexual, but produces spores in countless number. In ferns the o["o]phore is a minute prothallus; in mosses it is the leafy plant.
Wiktionary
oophore
n. (context biology English) A form of some ferns and mosses that bear sexual fruit