American businesspeople – McDonald's Corporation James Smith McDonnell, American businessman – McDonnell Aircraft Corporation, later to become McDonnell Douglas. Giuseppe Meazza, Italian association football player and manager – Stadio Giuseppe Meazza. Medusa, Greek mythological character – Medusa (biology), Medusa piercing, Medusa pepper, Medusaceratops. Heinrich Meibome, German physician – Meibomian gland Henri Meige, French neurologist – Meige's syndrome Georg Meissner, German anatomist – Meissner's corpuscles Walther Meissner and Robert Ochsenfeld, German physicists – Meissner effect (or Meissner–Ochsenfeld effect) Lise Meitner, Austrian-Swedish physicist – meitnerium. Meiji, Japanese emperor – Meiji Shrine. Nellie Melba, Australian opera singer – Melba toast, Peach Melba, Melba (a suburb of Canberra, Australia) William Lamb, 2nd Viscount Melbourne, British Prime Minister – Melbourne. Gregor Mendel, Czech botanist – Mendelian inheritance, Mendel Polar Station. Dmitri Mendeleev, Russian chemist – mendelevium, periodic table of Mendeleev Prosper Ménière, French physician – Ménière's disease Mentor, Greek mythological character – mentor (a trusted friend, counselor or teacher, usually a more experienced person), mentoring programs. Giuseppe Mercalli, Italian seismologist – Mercalli intensity scale of an earthquake Gerard Mercator, Flemish cartographer – Mercator projection. Nicholas Mercator, German mathematician – Mercator series. John Mercer, British chemist – mercerised cotton. Ismail Merchant, British film producer, and James Ivory, American film director – Merchant Ivory Productions. Mercury Greek-Roman mythological character – Mercury (planet), Mercury (element) and Mercury poisoning. Robert Mertens, Russian-German biologist – Mertensian mimicry, Robert Mertens's day gecko, Mertens' water monitor. Charles Merrill, American businessman – Merrill Lynch. Marin Mersenne, French mathematician – Mersenne prime, Mersenne's laws, Mersenne twister. Franz Anton Mesmer, German hypnotist – Mesmerism, "to mesmerize". Messalina, Roman empress – a messalina (debaucherous woman), messaline. Wilhelm Messerschmitt, German engineer – Messerschmitt. Charles Messier, French astronomer – Messier object. Ioannis Metaxas, Greek Prime Minister – Metaxism. Robert Metcalfe, American electrical engineer – Metcalfe's law Methuselah, Biblical character – A Methuselah (nickname for a very old person), Methuselah (6-litre wine bottle see Wine bottle#Sizes) Saint Michael, Biblical character – Order of Saint Michael and Saint George, Arkhangelsk, and numerous other places with St Michael or Archangel in them. André Michelin, French businessman – Michelin, Michelin guide. Giovanni Michelotti, Italian businessman – Michelotti. Carl Miele, German businessman – Miele Jacques Mieses, German chessplayer – Mieses Opening Caspar Milquetoast, American comics character – Milquetoast (a weak, ineffectual or bland person.) Hermann Minkowski, German mathematician – Minkowski addition, Minkowski inequality, Minkowski space, Minkowski diagram, Minkowski's theorem. Minos, mythological king of