Nematocera \Nem`a*toc"e*ra\, n. pl. [NL., fr. Gr. nh^ma, nh`matos, a thread + ke`ras horn.] (Zool.) A suborder of dipterous insects, having long antennae, as the mosquito, gnat, and crane fly; -- called also {Nemocera}. [1913 Webster]