Acronyms

• The Maine Educational Assessment standardized test, which was phased out for high school juniors in favor of the SAT
• 2-Mercaptoethylamine, an organic chemical compound
• Middle East Airlines
• Middle East & Asia
• Manx Electricity Authority
• Michigan Education Association
• Millennium Ecosystem Assessment
• Minimum enroute altitude, the recommended minimum altitude for a segment of an airway
• Minnesota Education Association
• monoethanolamine, an organic chemical compound
• Multi-electrode array to record activity from populations of neurons
• Multilateral environmental agreement
• Museum of European Art
• Membrane electrode assembly, part of a PEM fuel cell
• MEA-Monoethanolamine, a Classical and effective chemical solvent used for carbon dioxide capture

Fictional characters

• Mea, is a maid for three sisters in the anime & eroge game Popotan.