The term 'Unicorn Fish' refers to a species of fish found in the Indo-Pacific region. The scientific name for this species is Naso unicornis, and it is also commonly known as the nurf, unicorn tang, or naso tang. It is a large, colorful fish with a single horn-like protrusion on its head. The two crossword solutions for this term are UNIE (4 letters) and UNIES (5 letters). UNIE is an abbreviation for the scientific name, Naso unicornis, while UNIES is a plural form of the same word.