Definition

1. Noun:
   • Red blood cell: A type of blood cell that contains hemoglobin and is responsible for carrying oxygen from the lungs to the body's tissues and returning carbon dioxide from the tissues back to the lungs. This is the primary and most common meaning.
   • Erythrocyte: The formal, scientific term for a red blood cell.

Usage Examples

• Noun:
  • Hồng huyết cầu có nhiệm vụ vận chuyển oxy. (Red blood cells are responsible for transporting oxygen.)
  • Số lượng hồng huyết cầu trong máu thấp có thể gây thiếu máu. (A low red blood cell count in the blood can cause anemia.)
  • Dưới kính hiển vi, chúng ta có thể thấy hình dạng của hồng huyết cầu.* (Under a microscope, we can see the shape of erythrocytes.)

Advanced Usage

• Medical/Technical Context: The term is used in formal medical, biological, and scientific contexts, though is more common in modern Vietnamese.
  • Xét nghiệm đo lường nồng độ hồng huyết cầu.* (A test that measures the concentration of red blood cells.)

Variants and Related Words

• Hồng cầu (n): The more common and contemporary Vietnamese term for "red blood cell." is often considered a slightly older or more formal variant.
  • Bác sĩ kiểm tra số lượng hồng cầu của bệnh nhân. (The doctor checks the patient's red blood cell count.)
• Bạch cầu (n): White blood cell (leukocyte).
• Tiểu cầu (n): Platelet (thrombocyte).
• Huyết sắc tố / Hemoglobin (n): Hemoglobin, the protein in red blood cells that carries oxygen.

Synonyms

• Hồng cầu: Red blood cell (the direct and most frequent synonym in Vietnamese).
• Erythrocyte: Red blood cell (scientific synonym, used in English and international contexts).

Notes on Usage

• Word Origin and Formality: is a Sino-Vietnamese compound word: (red), (blood), (cell). It is a precise and formal term. In everyday modern Vietnamese, especially in general health communication, the shortened form hồng cầu is overwhelmingly preferred.
• Context: You will encounter in textbooks, academic papers, formal medical reports, and sometimes in older literature. For general use, is the standard term.

1. như hồng cầu