Rh positive

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Definition

Noun: A blood group classification in which an individual's red blood cells possess the Rh factor (Rhesus factor), a specific antigen on the cell surface. This is the most common blood type among humans.

Usage

This term is used primarily in medical, biological, and healthcare contexts to describe a person's blood type. - It is often written with a plus sign (+) following the ABO blood type (e.g., O+, A+, B+, AB+). - It is the opposite of Rh negative.

Examples
Advanced Usage
  • Rh Positive Blood: Refers to the physical blood that contains the Rh antigen.
    • The transfusion must be matched; Rh positive blood cannot be given to an Rh negative recipient.
  • Rh Positive Individual/Person: A person who has this blood type.
    • As an Rh positive individual, he can receive blood from both Rh positive and Rh negative donors.
Variants and Related Words
  • Rh factor (noun): The specific antigen (protein) present on red blood cells that defines Rh positive status.
  • Rhesus factor (noun): Another name for the Rh factor, derived from the Rhesus monkeys in which it was first identified.
  • Rh negative (noun): The blood group whose red cells lack the Rh factor.
Synonyms
  • Rh+ (symbol): The standard symbolic abbreviation.
  • Rhesus positive (less common): A full variant of the term.
Notes
  • The term itself is not typically used in idioms or phrasal verbs due to its specific technical nature.
  • In everyday conversation, people usually state their full blood type (e.g., "I'm A positive") rather than saying "I am Rh positive" alone, though the latter is medically accurate.
Noun
  1. the blood group (approximately 85% of people) whose red cells have the Rh factor (Rh antigen)

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