Pronunciation: (nik'u-lus, nik'lus),[key] —n. 1. of Cu•sa Pronunciation: (kyOO'zu),[key] 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 centurya.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.”