Fibonacci number

noun

Fi·​bo·​nac·​ci number ˌfē-bə-ˈnä-chē- How to pronounce Fibonacci number (audio)
ˌfi-bə-
: an integer in the infinite sequence 1, 1, 2, 3, 5, 8, 13, … of which the first two terms are 1 and 1 and each succeeding term is the sum of the two immediately preceding

Word History

Etymology

Leonardo Fibonacciabout 1250 Italian mathematician

First Known Use

1914, in the meaning defined above

Time Traveler
The first known use of Fibonacci number was in 1914

Dictionary Entries Near Fibonacci number

Cite this Entry

“Fibonacci number.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Fibonacci%20number. Accessed 26 May. 2024.

Kids Definition

Fibonacci number

noun
Fi·​bo·​nac·​ci number ˌfē-bə-ˈnäch-ē- How to pronounce Fibonacci number (audio)
ˌfib-ə-
: any of the integers in the infinite sequence 1, 1, 2, 3, 5, 8, 13 … of which the first two terms are 1 and 1 and each following term is the sum of the two just before it
Etymology

named for Leonardo Fibonacci about 1170–about 1240 Italian mathematician

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