Definition

1. Noun:
   • Flask (laboratory): A round, spherical glass container with a narrow neck, used in scientific laboratories for holding, heating, or mixing liquids. It is a fundamental piece of chemistry glassware.
   • Balloon (glass): An alternative term, derived from the French "ballon," referring to the same spherical laboratory vessel.

Usage Examples

• Noun:
  • Nhà khoa học đun nóng dung dịch trong bình cầu. (The scientist heated the solution in the round-bottom flask.)
  • Bình cầu thường được kẹp chặt trên giá đỡ. (The flask is usually clamped securely onto a stand.)
  • Cô ấy rót hóa chất vào bình cầu. (She poured the chemical into the flask.)

Advanced Usage

• "bình cầu đáy tròn": round-bottom flask. Designed for uniform heating and stirring.

  • Phản ứng được tiến hành trong bình cầu đáy tròn. (The reaction was carried out in a round-bottom flask.)

• "bình cầu đáy bằng": flat-bottom flask. Can stand upright on a surface.

  • Bình cầu đáy bằng thích hợp để chứa dung dịch. (A flat-bottom flask is suitable for storing solutions.)

Variants and Related Words

• Bình tam giác (n): Erlenmeyer flask. A conical flask with a flat base.

  • Bình tam giác dùng để lắc dung dịch mà không bị tràn. (An Erlenmeyer flask is used for shaking solutions without spilling.)

• Bình cổ hẹp (n): boiling flask. Similar to a round-bottom flask but often with a longer neck.

Synonyms

• Laboratory flask: The general term for flasks used in labs.
• Round-bottom flask: A specific, common type of .
• Balloon flask: A less common English synonym derived from French.

Related Terms

• Giá đỡ (n): clamp stand or retort stand. Used to hold the flask.
• Đèn cồn (n): alcohol burner. A common heat source used with a .

1. Flask (dùng trong phòng thí nghiệm)