[{"Bold_text": "noun", "List Items": ["Al·bert[al, -bert, ahl, -be, r, t],1879–1955,German physicist, U.S. citizen from 1940: formulator of the of relativity; Nobel Prize 1921.", "Al·fred[al, -frid, ahl, -f, r, et],1880–1952,German musicologist in U.S.", "(lowercase)Physics, Chemistry.a unit of radiant energy, equal to the energy of radiation that is capable of photochemically changing one mol of a photosensitive substance."]}]