毛髪

1. Origins, structure, and basic meaning

• Structure: In 毛髪 (もうはつ), hair 毛 and head hair 髪 combine to denote human hair collectively.
• Basic usage: 毛髪 is a relatively formal or medical collective term for hair growing on the human head.

2. Common pitfalls and similar expressions

• Hair as a collective formal term
  • Its scope differs from all body hair or one individual strand.