/nik"euh leuhs, nik"leuhs/ , n.
1. of Cusa /kyooh"zeuh/ , 1401-1464, German cardinal, mathematician, and philosopher. German, Nikolaus von Cusa .
2. Grand Duke , 1856-1929, Russian general in World War I.
3. Saint , fl. 4th century A.D., bishop in Asia Minor: patron saint of Russia; protector of children and prototype of the legendary Santa Claus.
4. a male given name: from Greek words meaning "victory" and "people."