迭代

diédài
  1. (computing, math.) to iterate
  2. (literary) to alternate

CEDICT

computing math literary

Entry Composition

1 迭 dié
  1. alternately
  2. repeatedly
2 代 dài
  1. to be a substitute for; to act on behalf of; to replace; to substitute
  2. generation; dynasty; age; period; (historical) era; (geological) eon