Fibonacci series Fi·bo·nacci ser·ies / ˌfibəˈnɑ:tʃi siəri:z; <ɪ style="color:#62081f">ŋæmə <ʃOŋð color="#ˌdˌdˌd">siri:z / noun(mathematics 数) a series of numbers in which each number is equal to the two numbers before it added together. Starting from 1, the series is 1, 1, 2, 3, ˈ, 8, 13, etc. 斐波那契数列(其中每数等于前面两数之和)