Definition of elegy for English Language Learners. : a sad poem or song : a poem or song that expresses sorrow for someone who is dead.
Hepatitis B was first discovered in 1963 by Dr. Baruch Blumberg and colleagues, who identified a protein (the âAustralia antigenâ that reacted to antibodies from patients with hemophilia and leukemia.
Polonium was discovered in 1898 by Marie Curie while she was working in France. Polonium was the first element discovered by Curie and it was named after her birthplace, Poland.