[land-stahy-ner; German lahnt-shtahy-nuh r]
- Karl [kahrl; German kahrl] /kɑrl; German kɑrl/, 1868–1943, Austrian pathologist in the U.S.: Nobel Prize 1930.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- Karl (karl). 1868–1943, Austrian immunologist, who discovered (1900) human blood groups and introduced the ABO classification system. He also discovered (1940) the Rhesus (Rh) factor in blood and researched into poliomyelitis. Nobel prize for physiology or medicine (1930)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- Austrian-born American pathologist who discovered the human blood groups A, B, and O in 1901. In 1902, his colleagues discovered a fourth group, AB, and in 1927 Landsteiner discovered two more groups, M and N. For this work Landsteiner received the 1930 Nobel Prize for physiology or medicine. In 1940 he discovered the Rh factor.
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