nước đái quỷ

Thân thiện

Trong xưởng nhuộm vải, người ta có thể ngửi thấy mùi nước đái quỷ.

Definition

1. Noun:
   • Ammonia: A chemical compound with the formula NH₃, a colorless gas with a pungent odor, used in cleaning products, fertilizers, and industrial applications. This is an archaic or colloquial term in Vietnamese.

Usage Examples

• Noun:
  • Trong xưởng nhuộm vải có mùi nước đái quỷ rất khó chịu. (The dyeing workshop has a very unpleasant smell of ammonia.)
  • Ngày xưa, người ta gọi amoniac là nước đái quỷ. (In the old days, people called ammonia "nước đái quỷ".)

Advanced Usage

• This term is considered obsolete, vulgar, or highly colloquial in modern Vietnamese. It is primarily found in historical texts, older literature, or used in a very informal context to describe a strong ammonia smell.
  • Cái mùi trong chuồng ngựa này như mùi nước đái quỷ vậy. (The smell in this horse stable is like the smell of ammonia.)

Variants and Related Words

• Amoniac (noun): The modern, standard Vietnamese term for ammonia.
  • Amoniac là một hóa chất quan trọng trong công nghiệp. (Ammonia is an important chemical in industry.)
• Khí amoniac (noun phrase): Ammonia gas.
• Dung dịch amoniac (noun phrase): Ammonia solution.

Synonyms

• Amoniac (noun): Ammonia (the standard term).
• Khí NH₃ (noun phrase): NH₃ gas (scientific term).

Notes on Usage

• Register: The term 'nước đái quỷ' is archaic and vulgar. It is strongly recommended to use the standard term 'amoniac' in all formal, scientific, educational, and polite contexts.
• Etymology: The term literally translates to "devil's urine," reflecting its strong, offensive odor. This etymology explains its vulgar nature and why it has fallen out of polite usage.

Học thuật

1. (cũ)Amoniac