Definition of Mercator's projection in English:

Mercator's projection

(also Mercator projection)


  • An orthomorphic cylindrical map projection (first used by Mercator in 1568) in which the meridians are equally spaced straight lines at right angles to the equator, and the parallels of latitude are horizontal lines whose distance from each other increases with their distance from the equator.


Early 17th century; earliest use found in Thomas Roe (1581–1644), diplomat.