Definition of francis day:
(N) :
Francis Talbot Day (2 March 1829 – 10 July 1889) was an army surgeon and naturalist in the Madras Presidency who later became the Inspector-General of Fisheries in India and Burma.
(N) :
James Francis Day, generally known as Francis Day, was an American artist, whose paintings may be found in many private and public collections, largely in the United States.
(N) :
an administrator associated with the East India Company.