Adjacent Words

M definitions

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Webster's 1828 Dictionary

M is the thirteenth letter of the English Alphabet, and a labial articulation, formed by a compression of the lips. It is called a semi-vowel, as the articulation or compression of the lips is accompanied with a humming sound through the nose, which constitutes a difference between this letter and b. Its sound is uniform; as in man, time, rim.
M is a numeral letter, and among the ancients stood for a thousand; a use which is retained by the moderns. With a dash or stroke over it, it stands for a thousand times a thousand, or a million.
As an abbreviation, M stands for Marcus, Martius, Manlius or Mutius.
A.M. or M.A. stands for artium magister, master of arts; M.D. for medicinoe doctor, doctor of medicine; A.M. for anno mundi, the year of the world; MS, for manuscript; MSS, for manuscripts.
In astronomical tables, M stands for meridian, meridional, or mid-day.
In medical prescriptions, M stands for maniple, or handful, or misce, mix, or mixtura, a mixture.
In the late British Pharmacopaeias it signifies mensura, by measure.
In law, M is a brand or stigma impressed on one convicted of manslaughter, and admitted to the benefit of clergy.

WordNet (r) 3.0 (2005)

adj
1: denoting a quantity consisting of 1,000 items or units [syn: thousand, one thousand, 1000, m, k] n
1: the basic unit of length adopted under the Systeme International d'Unites (approximately 1.094 yards) [syn: meter, metre, m]
2: concentration measured by the number of moles of solute per liter of solution [syn: molarity, molar concentration, M]
3: the cardinal number that is the product of 10 and 100 [syn: thousand, one thousand, 1000, M, K, chiliad, G, grand, thou, yard]
4: a unit of information equal to 1000 kilobytes or 10^6 (1,000,000) bytes [syn: megabyte, M, MB]
5: a unit of information equal to 1024 kibibytes or 2^20 (1,048,576) bytes [syn: megabyte, mebibyte, M, MB, MiB]
6: the 13th letter of the Roman alphabet [syn: M, m]

Merriam Webster's

abbreviation 1. Mach 2. magnitude 3. March 4. May 5. medium 6. mega- 7. million 8. molar; molarity 9. monsieur

Merriam Webster's

verb Date: 1584 am <I'm going>

Merriam Webster's

I. noun (plural m's or ms) Usage: often capitalized, often attributive Date: before 12th century 1. a. the 13th letter of the English alphabet b. a graphic representation of this letter c. a speech counterpart of orthographic m 2. one thousand — see number table 3. a graphic device for reproducing the letter m 4. one designated m especially as the 13th in order or class 5. something shaped like the letter M 6. a. em 2 b. pica 2 II. abbreviation 1. male 2. manual 3. married 4. martyr 5. masculine 6. mass 7. measure 8. meridian 9. [Latin meridies] noon 10. meter 11. middle 12. mile 13. [Latin mille] thousand 14. milli- 15. minute 16. molal; molality 17. mole 18. month 19. moon 20. morning 21. muscle

Oxford Reference Dictionary

1. n. (pl. Ms or M's) 1 the thirteenth letter of the alphabet. 2 (as a Roman numeral) 1,000. 2. abbr. (also M.) 1 Master. 2 (in titles) Member of. 3 Monsieur. 4 (in the UK in road designations) motorway. 5 mega-. 6 Chem. molar.

Oxford Reference Dictionary

abbr. (also m.) 1 a masculine. b male. 2 married. 3 Cricket maiden (over). 4 mile(s). 5 metre(s). 6 million(s). 7 minute(s). 8 Currency mark(s). 9 mare. 10 milli-.

Oxford Reference Dictionary

adj. = MY (m'lud).

Webster's 1913 Dictionary

M M ([e^]m). 1. M, the thirteenth letter of the English alphabet, is a vocal consonant, and from the manner of its formation, is called the labio-nasal consonant. See Guide to Pronunciation, [sect][sect] 178-180, 242. Note: The letter M came into English from the Greek, through the Latin, the form of the Greek letter being further derived from the Ph[oe]nician, and ultimately, it is believed, from the Egyptian. Etymologically M is related to n, in lime, linden; emmet, ant; also to b. M is readily followed by b and p. the position of the lips in the formation of both letters being the same. The relation of b and m is the same as that of d and t to n. and that of g and k to ng. 2. As a numeral, M stands for one thousand, both in English and Latin.

Webster's 1913 Dictionary

M M, n. 1. (Print.) A quadrat, the face or top of which is a perfect square; also, the size of such a square in any given size of type, used as the unit of measurement for that type: 500 m's of pica would be a piece of matter whose length and breadth in pica m's multiplied together produce that number. [Written also em.] 2. (law) A brand or stigma, having the shape of an M, formerly impressed on one convicted of manslaughter and admitted to the benefit of clergy. M roof (Arch.), a kind of roof formed by the junction of two common roofs with a valley between them, so that the section resembles the letter M.