Nem`a*to*ca"lyx (?), n.; pl. Nematocalyces (#), E. -calyxes (#). [NL. See Nemato-, and Calyx.] Zool.
One of a peculiar kind of cups, or calicles, found upon hydroids of the family Plumularidae. They contain nematocysts. See Plumularia.
© Webster 1913.