\Nau"pli*us\, n.; pl. {Nauplii}. [L., a kind of
shellfish, fr. Gr. ? ship + ? to sail.] (Zo["o]l.)
A crustacean larva having three pairs of locomotive organs
(corresponding to the antennules, antenn[ae], and mandibles),
a median eye, and little or no segmentation of the body.