Understanding 細菌 (さいきん)
細菌 refers to bacteria or germs, microscopic organisms that can be found everywhere. It is a scientific term often used in medical, biological, and health-related contexts.
Usage and Context
When you use 細菌, you are usually talking about microorganisms that can cause infections or diseases, but sometimes also beneficial bacteria. It is a formal and technical word, so it appears often in news, textbooks, and scientific discussions.
Common Collocations and Patterns
- 細菌感染 (さいきんかんせん): bacterial infection, used when discussing illnesses caused by bacteria.
- 細菌を殺す (さいきんをころす): to kill bacteria, common in health and hygiene contexts.
- 細菌の繁殖 (さいきんのはんしょく): bacterial growth or reproduction, used in biology or food safety.
Important Notes
Learners sometimes confuse 細菌 with ウイルス (virus). Remember, 細菌 are living organisms that can reproduce on their own, while viruses need a host cell. Using 細菌 when you mean virus can cause misunderstanding.
Also, 細菌 is a noun and is often combined with verbs like いる (to exist), つく (to attach), or ふえる (to increase).