yalow

noun

1. Ros·a·lyn (Suss·man) [roz–uh-lin suhs-muh n] /ˈrɒz ə lɪn ˈsʌs mən/, 1921–2011, U.S. medical physicist: Nobel Prize in medicine 1977.

1. American physicist who, working with the biophysicist Solomon A. Berson, developed the radioimmunoassay (RIA), an extremely sensitive technique for measuring very small quantities of substances such as hormones, enzymes, and drugs in the blood. For this work, she won a 1977 Nobel Prize for physiology or medicine.