Named after Howard Walter Florey - Australian-born British pathologist, Nobel Prize winner 1945 (1898-1968).
Florey is a lunar impact crater on the lunar near side near the northern pole. Florey is directly adjacent to Byrd crater to the North. The crater was named by the IAU in 2009. (wikipedia entry)
A crater is a circular depression likely created by an impact event. On the Moon they are named after deceased scientists, polar explorers, astronauts or cosmonauts.