re·cur·sion
noun/rɪˈkɜːʃn/
/rɪˈkɜːrʒn/
[uncountable] (mathematics)- the process of repeating a function, each time applying it to the result of the previous stage
递归 Word Origin1930s: from late Latin recursio(n-), from recurrere ‘run back’, from re- ‘again, back’ + currere ‘run’.