khử

Definition

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 có 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 là 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 là bước rất quan trọng. (Sterilizing medical instruments is a very important step.)
"khử độc": to detoxify, to remove poison.
- Máy lọc không khí này có 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

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.)

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Proverbs and Idioms