[Fi.bo.nac.ci number] n [Leonardo Fibonacci d. ab 1250 Ital. mathematician] (1914): 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
FIBONACCI NUMBER
Meaning of FIBONACCI NUMBER in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012