Shell

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Architecture and design

• Shell (structure), a thin structure
  • Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses
  • Thin-shell structure,
  • Oil company

Science

Biology

• Seashell, a hard outer layer of a marine animal, found on beaches
• Eggshell
• Nutshell
• Exoskeleton, an external covering of some animals
  • Mollusc shell
    • Bivalve shell
    • Gastropod shell
  • Shell, of a brachiopod
  • Turtle shell

Physics and chemistry

• Electron shell or a principal energy level of electrons outside an atom's nucleus
• Nuclear shell model, a principal energy level of nucleons within an atom's nucleus
• On shell and off shell, quantum field theory concepts depending on whether classical equations of motion are obeyed

Mathematics

• Spherical shell

Organisations

• Royal Dutch Shell, a multinational oil and gas company
  • Shell Oil Company, the U.S.-based subsidiary
  • Shell Canada
  • Shell Nigeria
• Shell corporation, a type of company that serves as a vehicle for business transactions

Computing

• Shell (computing), a type of user interface
  • Command-line interface, sometimes referred to as command shell
  • List of command-line interpreters, programs occasionally referred to as shells
• Read–eval–print loop, also known as a language shell
• Shell account, a user account on a remote server
• Secure Shell protocol
• Shellsort or Shell sort, a sorting algorithm by Donald Shell
• Shell, an empty expert system

Entertainment

• Shell (film)
• Shell (theater), a curved surface for reflecting sound
• The Shells, a musical group
• "Shells" (Angel), a TV episode
• Shell, a receptacle used in the Shell game

Places

• Shell, Ecuador
• Shell, California, US
• Shell, Wyoming, US

Weaponry

• Shell (projectile), an explosive device fired from artillery
• Shotgun shell, a type of shotgun ammunition

Persons with the surname Shell

• Art Shell (born 1946), American football player and coach
• Brandon Shell (born 1992), American football player
• Donnie Shell (born 1952), American football player
• Donald Shell (1924–2015), American computer scientist
• George W. Shell (1831–1899), U.S. Representative from South Carolina
• Joe Shell (1918–2008), American businessman and politician
• Karl Shell (born 1938), American economist
• Mary K. Shell (1927–2018), American journalist and politician

Other uses

• Racing shell, a watercraft
• Shell (machinery), each half of a two-piece plain bearing
• Coverage shell, the number of defenders guarding the deep portion of the field in American football
• Web shell

See also

• Shell suit, a descendant of the tracksuit
• All pages with titles beginning with Shell
• All pages with titles containing Shell