Definition of Mercator, Gerardus in English:

Mercator, Gerardus

proper noun

  • (1512–94), Flemish geographer and cartographer, a resident in Germany from 1552; Latinized name of Gerhard Kremer. He invented the system of map projection that is named after him.

Pronunciation:

Mercator, Gerardus

/mərˈkātər/