淀积

澱積
diànjī
(geology) to illuviate

CEDICT

geology

Entry Composition

=1 淀 diàn (bound form) shallow lake (usu. in place names)
=1 淀 diàn to form sediment; to precipitate
2 积 jī
  1. to amass; to accumulate; to store up
  2. (math.) product (the result of multiplication)
  3. (TCM) constipation; indigestion