Catalan

Catalan can refer to:

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• the Catalan language
• an inhabitant of Catalonia
• Eugène Charles Catalan, a mathematician
• Catalan solid, a concept in mathematics
• Catalan number, a concept in mathematics
• Catalan Opening, a chess opening
• Catalan forge, an early type of open-hearth furnace
• Catalan vault, an architectural feature (also known as a Catalan arch or a Catalan turn)
• The Catalan Company (or Catalan Grand Company), a mercenary free company in 14th century Europe
• The Catalan middle dot, an orthographic symbol
• The lunar crater Catalán.
• The Spanish spectroscopist Miguel Ángel Catalán (1894-1957), after whom the lunar crater is named.