资料来源 : pyDict

字母m

资料来源 : Webster's Revised Unabridged Dictionary (1913)

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.

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.

资料来源 : WordNet®

m
     adj : denoting a quantity consisting of 1,000 items or units [syn:
            {thousand}, {a thousand}, {one thousand}, {1000}, {k}]

m
     n 1: the basic unit of length adopted under the Systeme
          International d'Unites (approximately 1.094 yards) [syn:
           {meter}, {metre}]
     2: concentration measured by the number of moles of solute per
        liter of solvent [syn: {molarity}, {molar concentration}]
     3: the cardinal number that is the product of 10 and 100 [syn:
        {thousand}, {one thousand}, {1000}, {K}, {chiliad}, {G}, {grand},
         {thou}, {yard}]
     4: the 13th letter of the Roman alphabet

资料来源 : Free On-Line Dictionary of Computing

M
     
        1. Alternative name for {MUMPS}.
     
        2. A {C}-like language from {Silicon Compiler Systems} for
        multilevel {hardware description}.  It is currently available
        in the {GDT} package from {Mentor Graphics}.
     
        [{Jargon File}]
     
        (1994-10-26)
     
        3.  The abbreviated for of {mega-}.
     
        (1995-01-10)