注射

1. Origins, structure, and basic meaning

• Structure: 注射 is read as ちゅうしゃ and means “injection”.
• Basic usage: The examples show a simulated injection scene and a child afraid of injections in an illustration.

2. Common pitfalls and similar expressions

• Distinguishing senses and uses
  • It is the medical act of administering a substance by injection; the needle and syringe as objects are 針 and 注射器.