Look up shell in Wiktionary, the free dictionary.
Shell may refer to:
Architecture and design
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- Shell (structure), a thin structure
- Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses
- Thin-shell structure
Science
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Biology
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- 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
- Armadillo shell
Physics and chemistry
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- 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
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Organisations
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- Shell plc formerly Royal Dutch Shell plc, a British multinational oil and gas company
- Shell Oil Company or Shell USA
- Shell Australia
- Shell Canada
- Shell Nigeria
- Shell corporation, a type of company that serves as a vehicle for business transactions
Computing
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Shell Tutorials:
The term \'shell\' refers to a general class of text-based command interpreters most often associated with the Unix & Linux operating systems