'M' definitions:

Definition of 'm'

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

Definition of 'M'

From: GCIDE
  • 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.] [1913 Webster]
  • 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. [1913 Webster]
  • 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. [1913 Webster]

Definition of 'M'

From: GCIDE
  • 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. [1913 Webster]
  • 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. [1913 Webster] 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. [1913 Webster]
  • 2. As a numeral, M stands for one thousand, both in English and Latin. [1913 Webster]