The Collaborative International Dictionary
Gastridium lendigerum
Nit \Nit\ (n[i^]t), n. [AS. hnitu; akin to D. neet, G. niss, OHG. niz; cf. Gr. koni`s, koni`dos, Icel. gnit, Sw. gnet, Dan. gnid, Russ. & Pol. gnida, Bohem. hnida, W. nedd.] (Zo["o]l.) The egg of a louse or other small insect.
Nit grass (Bot.), a pretty annual European grass ( Gastridium lendigerum), with small spikelets somewhat resembling a nit. It is also found in California and Chile.