Bayliss, William Maddock (1860–1924)
English physiologist who, in collaboration with Ernest Henry
Starling (1866–1927), introduced the term hormone
to describe substances which, when secreted from one part of the body, have
a specific effect on another. In 1902 they discovered secretin,
one of the first hormones to be identified. Bayliss also introduced the
saline injection for cases of surgical shock
during World War I.