Oophoridiums

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. [1913 Webster]