Oophoridium \O`["o]*pho*rid"i*um\, n.; pl. L. {O["o]phorida}, E. {O["o]phoridiums}. [NL., dim. fr. Gr. ?. See {O["o]phore}.] (Bot.) The macrosporangium or case for the larger kind of spores in heterosporous flowerless plants.
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