Noun

(en noun)

(cartography) The distance north of a standard reference latitude.

(nautical) A distance traveled northward.

Noun

(en noun)

Angular distance measured west or east of the prime meridian.

* {{quote-magazine, date=2012-03

, author=William E. Carter, Merri Sue Carter , title=The British Longitude Act Reconsidered , volume=100, issue=2, page=87 , magazine= citation , passage=But was it responsible governance to pass the Longitude Act without other efforts to protect British seamen? Or might it have been subterfuge—a disingenuous attempt to shift attention away from the realities of their life at sea.}}

Any imaginary line perpendicular to the equator and part of a great circle passing through the North Pole and South Pole.

(archaic) Length.

* {{quote-book, passage=His shoulders are remarkably sloping, giving an appearance of great longitude to his neck.

, pageurl=http://books.google.ca/books?id=-MdPAAAAYAAJ&pg=PA504&dq=%22great+longitude%22&lr=&as_brr=0&ei=iGOHT_DJCZTcNYDmlJQD&cd=13&redir_esc=y

v=onepage&q=%22great%20longitude%22&f=false

, page=504 , title=The American Quarterly Review , volume=10 , year=1831 , chapter=Griffin's Remains , author=Francis Griffin}}