Longitude
WordNet
noun
(1) The angular distance between a point on any meridian and the prime meridian at Greenwich
WiktionaryText
Etymology
Middle English: longitude (length, a measured length), from longus "long".
Noun
- Angular distance measured west or east of the prime meridian.
- Any imaginary line perpendicular to the equator and part of a great circle passing through the North Pole and South Pole.
Noun
longitude
- Angular distance measured west or east of the Greenwich Meridian.
- An imaginary line perpendicular to the equator, passing through the North Pole and South Pole.