1465660 jmdict A [id=2284294]
入れ子；入れ籠
いれこ
[1][n]
  nest (of boxes); nesting
[2][n]
  concealed information
[3][n][fld=comp]
  [restr=入れ子]
  nested structure
  [see=1092910・ネスティング[2]]
[4][n][dated]
  [restr=入れ子]
  adopting a child after one's own has died; child adopted by a parent of a deceased child
[5][n]
  cavity in an oar (fitted onto a peg as part of a traditional oarlock)
  [see=2232720・櫓杭[1]]