[ fee-boh-nah-chee ]
/ ˌfi boʊˈnɑ tʃi /
plural noun Mathematics.
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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Also called Fibonacci sequence.
Origin of Fibonacci numbers
1890–95; after Leonardo Fibonacci, 13th-century Italian mathematician
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for fibonacci sequence
/ (ˌfɪbəˈnɑːtʃɪ) /
the infinite sequence of numbers, 0, 1, 1, 2, 3, 5, 8, etc, in which each member (Fibonacci number) is the sum of the previous two
Word Origin for Fibonacci sequence
named after Leonardo Fibonacci
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for fibonacci sequence
A sequence of numbers, such as 1, 1, 2, 3, 5, 8, 13 … , in which each successive number is equal to the sum of the two preceding numbers. Many shapes occurring in nature, such as certain spirals, have proportions that can be described in terms of the Fibonacci sequence. See also golden section.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.