病原菌

1. Origins, structure, and basic meaning

• Structure: The biological noun 病原菌 (びょうげんきん) denotes a disease-causing microorganism or pathogen.
• Basic usage: Hygiene measures prevent 病原菌の付着, while laboratory contexts examine its characteristics.

2. Common pitfalls and similar expressions

• Disease-causing microorganisms
  • It does not mean every bacterium; the ability to cause disease is part of the meaning.