Definition

Noun 1. A blood group: One of the major human blood group systems. A person with this blood type has red blood cells that carry the A antigen on their surface and anti-B antibodies in their plasma.

Usage

• Group A is one of the four main ABO blood types (A, B, AB, O).
• It is used to classify a person's blood for medical purposes, such as blood transfusions and organ transplants.
• The term is often used in medical, biological, and emergency contexts.

Examples

• "The patient has Group A positive blood."
• "Blood donors with Group A are in high demand this week."
• "In the ABO system, if you have Group A blood, you can receive blood from donors with Group A or Group O."

Advanced Usage

• Group A is frequently combined with the Rh factor (positive or negative) to give a complete blood type, e.g., Group A positive (A+) or Group A negative (A-).
• In genetics, inheriting Group A involves specific alleles (variations of a gene) from one's parents.

Variants and Related Words

• Blood group A: A more formal or explicit synonym.
• Type A: A common, less formal alternative with the same meaning.
• ABO system: The classification system that includes Group A, B, AB, and O.

Synonyms

• Type A
• Blood group A
• Blood type A

Antonyms

• Group B
• Group AB
• Group O

Related Phrases

• Compatible with: Group A blood is receiving from Group A and Group O donors.
• Universal recipient/Universal donor: While Group A is neither, Group AB positive is the universal recipient and Group O negative is the universal donor within the ABO and Rh systems.

Noun

1. the blood group whose red cells carry the A antigen