吸入

1. Origins, structure, and basic meaning

• Structure: 吸入 is read as きゅうにゅう and is a noun and する verb for inhaling medicine, air, smoke, or another substance into the body.
• Basic usage: Slowly inhaling medicine with a device appears in 薬をゆっくり吸入する, while avoiding inhaling smoke appears in 煙を吸入しないようにする.

2. Common pitfalls and similar expressions

• The object takes を
  • The medicine or smoke being inhaled is marked with を, followed by 吸入する as a transitive expression.
• Difference from 吸う
  • Unlike the everyday verb broadly covering breathing in or sucking, this term formally denotes inhalation in medical or safety contexts.