団塊

1. Origins, structure, and basic meaning

• Structure: 団塊, read だんかい, means a compact nodule or mass and also forms part of a fixed generational label.
• Basic usage: It can name a mineral nodule found in soil or occur in the expression 団塊の世代.

2. Common pitfalls and similar expressions

• A nodule and a generational expression
  • It denotes a mineral nodule found in soil and also appears within the name of a generation. In the generational expression, no physical mass is intended.