madj. denoting a quantity consisting of 1,000 items or units ; Mn. concentration measured by the number of moles of solute per liter of solution ; Mn. the 13th letter of the Roman alphabet ; Mn. a unit of information equal to 1024 kibibytes or 2^20 (1,048,576) bytes ; Mn. a unit of information equal to 1000 kilobytes or 10^6 (1,000,000) bytes ; mn. the basic unit of length adopted under the Systeme International d'Unites (approximately 1.094 yards) ; Mn. the cardinal number that is the product of 10 and 100 ; M-1n. a semiautomatic rifle ; M-1 riflen. a semiautomatic rifle ; M-theoryn. (particle physics) a theory that involves an eleven-dimensional universe in which the weak and strong forces and gravity are unified and to which all the string theories belong ; M. J. Schleidenn. German physiologist and histologist who in 1838 formulated the cell theory (1804-1881) ; M.M.n. the pace of music measured by the number of beats occurring in 60 seconds ; M1n. a measure of the money supply ; includes currency in circulation plus demand deposits or checking account balances ; M2n. a measure of the money supply ; M1 plus net time deposits (other than large certificates of deposit) ; M3n. a measure of the money supply ; M2 plus deposits at institutions that are not banks (such as savings and loan associations) ;
