Definition

1. Proper noun:
   • Karl Landsteiner: An Austrian-born American pathologist and immunologist, renowned for his discovery of the major human blood groups (A, B, AB, and O) and the Rh factor, which made safe blood transfusion possible.

Usage Examples

• Proper noun:
  • The Nobel Prize in Physiology or Medicine was awarded to Karl Landsteiner in 1930 for his discovery of human blood groups.
  • Modern transfusion medicine is built upon the foundational work of Karl Landsteiner.
  • Karl Landsteiner's research identified the presence of agglutinins in the blood.

Advanced Usage

• The term is used metonymically to refer to the discovery itself or its principles.
  • Understanding Landsteiner's laws is essential for serology. (Here, "Landsteiner's" refers to the scientific principles he established regarding blood group antibodies.)

Variants and Related Words

• Landsteiner's law (noun): A principle in immunology stating that for whichever blood group antigens (A or B) an individual lacks, they will naturally produce corresponding antibodies in their plasma.
• Landsteiner classification (noun): Another term for the ABO blood group system.

Synonyms

• Scientist, pathologist, immunologist, Nobel laureate. (Note: These are general synonyms for his profession and achievements, not direct synonyms for the proper name itself.)

Related Phrases

• ABO blood group system: The system of blood typing discovered by Landsteiner.
• Rh factor: The Rhesus blood group system, also discovered by Landsteiner and his colleagues.
• Blood transfusion: The medical procedure his work made safe and routine.

Noun

1. United States pathologist (born in Austria) who discovered human blood groups (1868-1943)