khử

Học thuật
Thân thiện
Definition
  1. Verb:
    • To eliminate, to get rid of, to dispose of: "khử" means to remove something undesirable, often in a deliberate or forceful manner. It can imply neutralizing or destroying a threat, problem, or unwanted element.
    • (Chemistry) To reduce, to deoxidize: In scientific contexts, "khử" refers to a chemical reaction where a substance gains electrons, typically involving the removal of oxygen.
Usage Examples
  • Verb (General):

    • Họ cần khử mùi hôi trong phòng. (They need to get rid of the bad smell in the room.)
    • Đội đặc nhiệm nhiệm vụ khử mục tiêu. (The special forces team has the mission to eliminate the target.)
  • Verb (Chemistry):

    • Quá trình khử oxit sắt tạo ra sắt nguyên chất. (The process of reducing iron oxide produces pure iron.)
    • Chất khử chất cho đi electron. (A reducing agent is a substance that gives away electrons.)
Advanced Usage
  • "khử trùng": to sterilize, to disinfect.
    • Khử trùng dụng cụ y tế bước rất quan trọng. (Sterilizing medical instruments is a very important step.)
  • "khử độc": to detoxify, to remove poison.
    • Máy lọc không khí này chức năng khử độc. (This air purifier has a detoxifying function.)
Variants and Related Words
  • Sự khử (n): elimination, reduction (the act or process).
    • Sự khử mùi diễn ra rất nhanh. (The deodorization happened very quickly.)
  • Chất khử (n): reducing agent.
    • Hiđro thường được dùng làm chất khử. (Hydrogen is often used as a reducing agent.)
Synonyms
  • Loại bỏ: to remove, to eliminate.
  • Tiêu diệt: to destroy, to exterminate (stronger, often for living threats).
  • Trừ khử: to eradicate (emphasizes complete removal).
Related Phrases (Collocations)
  • Khử khuẩn: to disinfect, to sanitize (specifically for bacteria).
    • Nước rửa tay dùng để khử khuẩn. (Hand sanitizer is used to disinfect.)
  • Khử mặn: to desalinate.
    • Nhà máy khử mặn nước biển. (The seawater desalination plant.)
Idioms

(Note: "khử" itself is not commonly used in idiomatic expressions. Its usage is more literal or technical.)

  1. Get rid of, dispose of, liquidate
    • Khử mùi
      To get rid of a bad smell(by fumigation...),to deodorize
    • Khử một đối thủ
      To dispose of a rival.
  2. (hoá học) Deoxidize