Luokka Eponyymitbulgariaenglantiespanjaesperantohollantiitaliajapanikreikkalatinalatvialiettuanorjaportugalipuolaranskaruotsisaksasuomitanskaturkkitšekkiunkarivenäjäviro

martini Martinize Marvellian Marxian Marxism Marxist Mary Bell order Maryland masochism Mason jar Mason-Dixon Line Massingerian Mathurin Maughamesque Maughamian mausoleum maverick Maxim Maxim gun maxwell Maxwell's demon Maxwellian May McArdle's disease McBurney's point McCarthyesque McCarthyism McCarthyist McCarthyite McClintock effect McDonald's McIntosh McKenzie friend McLeod gauge

McLuhanian McNaughton rules Meckelian Medician Meibomian Meissner effect melba Melba toast Melville Menckenian mendelevium Mendelian Mendelism Mendelssohnian Mendoza line mentor Mercatorian mercerize Mercury mercury Meredithian Mersenne prime mesmeric mesmerism mesmerist mesmerize Messier Messier catalogue Messier number Messier object Metcalfe's law method of Weierstrass Metonic

Michaelmas Michelangelesque Michler's ketone Mickey Mouse glove Midas touch MiG Milankovitch cycle Milesian Miller syndrome Millerian Millerite Millian Millikanian Mills bomb Mills Mess milquetoast Miltonesque Miltonian Miltonic Minkowski spacetime Minkowskian Miranda Miranda right Miranda warning Mirandize Misesian Mishima Mistralian Mitchell principle Mitchell principles Moebius syndrome Moeller's disease Mohorovičić discontinuity