nauplius

 
Pronunciation: /ˈnɔːplɪəs/

noun (plural nauplii /-plɪʌɪ, -plɪiː/)

Zoology
  • the first larval stage of many crustaceans, having an unsegmented body and a single eye.

Origin:

mid 19th century: from Latin, denoting a kind of shellfish, or from the Greek name Nauplios, the son of Poseidon