na-adjective
Used in mathematics, computer science, and logic to describe a process or definition that refers to itself.
この関数は回帰的に定義されている。
This function is defined recursively.
回帰的なアルゴリズムは、問題を小さな部分に分割する。
A recursive algorithm divides the problem into smaller parts.
From 回帰 (かいき, 'return, recurrence') + 的 (てき, '-like, -al'). The exact derivation is uncertain; the term is used in technical fields to mean 'recursive'.