1. nauplius - Noun
2. Nauplius - Proper noun
A crustacean larva having three pairs of locomotive organs (corresponding to the antennules, antennae, and mandibles), a median eye, and little or no segmentation of the body.
Source: Webster's dictionaryPausanias 10.31.2; Simpson, Gods & Heroes of the Greeks: The Library of Apollodorus, p. 251. Palamedes' father Nauplius sailed to the Troad and asked for justice, but was refused. Source: Internet