Nematocalyx :: Nematocalyx (n.) One of a peculiar kind of cups, or calicles, found upon hydroids of the family Plumularidae. They contain nematocysts. See Plumularia..
Nematocera :: Nematocera (n. pl.) A suborder of dipterous insects, having long antennae, as the mosquito, gnat, and crane fly; -- called also Nemocera..
Nematocyst :: Nematocyst (n.) A lasso cell, or thread cell. See Lasso cell, under Lasso..
Nematognathi :: Nematognathi (n. pl.) An order of fishes having barbels on the jaws. It includes the catfishes, or siluroids. See Siluroid..
Nematoid :: Nematoid (a.) Of or pertaining to the Nematoidea.
Nematoid :: Nematoid (n.) One of the Nematoidea. see Illustration in Appendix.
Nematoidea :: Nematoidea (n. pl.) An order of worms, having a long, round, and generally smooth body; the roundworms. they are mostly parasites. Called also Nematodea, and Nematoda..