M 1 also m The symbol for the Roman numeral 1,000.M 2abbr.1. Printing em2. Bible Maccabees3. Mach number4. male5. married6. medium7. meridian8. Latin meridies (noon)9. metal10. middle11. middle term12. Sports midfielder13. million14. M Chemistry molarity15. Physics moment16. Monday17. Monsieur18. month19. mutual inductancem 1 or M (?m)n. pl. m’s or M’s also ms or Ms 1. The 13th letter of the modern English alphabet.2. Any of the speech sounds represented by the letter m.3. The 13th in a series.4. Something shaped like the letter M.m 2abbr.1. Grammar masculine2. Physics mass3. meter (measurement)4. mile5. minute6. also M Physics modulus7. m Chemistry molalityAmerican Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.m (?m) or Mn, pl m’s, M’s or Ms1. (Linguistics) the 13th letter and tenth consonant of the modern English alphabet2. (Phonetics & Phonology) a speech sound represented by this letter, usually a bilabial nasal, as in matm symbol for 1. (Units) metre(s) 2. (Units) mile(s) 3. (Units) milli- 4. (Units) minute(s) M symbol for 1. (Units) mach 2. medium (size) 3. mega- 4. (Currencies) currency mark(s) 5. (Mathematics) million 6. (Astronomy) astronomy Messier catalogue; a catalogue published in 1784, in which 103 nebulae and clusters are listed using a numerical system: M13 is the globular cluster in Hercules. 7. Middle 8. (General Physics) physics modulus 9. (Automotive Engineering) (in Britain) motorway: the M1 runs from London to Leeds. 10. (Film) (in Australia)a. mature audience (used to describe a category of film certified as suitable for viewing by anyone over the age of 15)b. (as modifier): an M film. 11. (Logic) logic the middle term of a syllogism 12. (General Physics) physics mutual inductance 13. (Chemistry) chem molar 14. (Mathematics) (Roman numeral)1000. See Roman numerals abbreviation for (Automotive Engineering) Malta (international car registration) Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014M, m (?m) n., pl. Ms M’s, ms m’s. 1. the 13th letter of the English alphabet, a consonant. 2. any spoken sound represented by this letter. 3. something shaped like an M. 4. a written or printed representation of the letter M or m. 5. Print. em. M 1. mach. 2. major. 3. married. 4. Medieval. 5. medium. 6. mega-. 7. Middle. M Symbol. 1. the 13th in order or in a series. 2. the Roman numeral for 1000. 3. magnetization. 4. methionine. 5. minim. m 1. mass. 2. medieval. 3. medium. 4. meter. 5. middle. 6. minor. m- 1. meta-. 2. (referring esp. to the use of wireless electronic devices) mobile: m-commerce; m-business. M’- var. of Mac-. M. 1. majesty. 2. markka. 3. marquis. 4. measure. 5. medicine. 6. medium. 7. meridian. 8. noon. [