Mer•ca•tor(mər kā′tər; for 1 also Flem. mer kä′tôr),USA pronunciationn.Ger•har•dus(jər här′dəs),USA pronunciation (Gerhard Kremer), 1512–94, Flemish cartographer and geographer. adj.
Geographynoting, pertaining to, or according to the principles of a Mercator projection:a Mercator chart.