1 a person who visits a person or place.
2 a migratory bird present in a locality for part of the year (winter visitor).
3 Brit. (in a college etc.) an official with the right or duty of occasionally inspecting and reporting.
Phrases and idioms:
visitors' book a book in which visitors to a hotel, church, embassy, etc., write their names and addresses and sometimes remarks.
Etymology: ME f. AF visitour, OF visiteur (as VISIT)
Useful english dictionary. 2012.