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Fibonacci numbers

[ fee-boh-nah-chee ]

plural noun

, Mathematics.
  1. the unending sequence 1, 1, 2, 3, 5, 8, 13, 21, 34, … where each term is defined as the sum of its two predecessors.


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Word History and Origins

Origin of Fibonacci numbers1

1890–95; after Leonardo Fibonacci, 13th-century Italian mathematician

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FibonacciFibonacci sequence