JMdict entry #1704050

1. noun (common) (futsuumeishi) mass; lump; clod; clump
2. noun (common) (futsuumeishi) geology nodule
3. noun (common) (futsuumeishi) abbreviation baby boom generation (of 1947-1949); babyboomer (born between 1947-1949)
   see: 団塊の世代