n :  an agglutination test used to detect proteins and esp. antibodies on the surface of red blood cells
 
Coombs, Robert Royston Amos (b 1921), British immunologist. Coombs, along with A. E. Mourant and R. R. Race, devised in 1945 the test that is now known as the Coombs test.
 
 
 
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