siegel

noun
  1. A surname of German origin, often used as a family name. noun
    The famous mobster Benjamin 'Bugsy' Siegel was instrumental in the development of Las Vegas.
    Siegel is a common surname among people of German descent.
  2. Refers to Siegel modular forms, which are a type of mathematical function used in number theory. noun
    The mathematician presented his research on Siegel modular forms at the conference.
    Understanding Siegel modular forms is crucial for advanced studies in algebraic geometry.