m

concentration measured by the number of moles of solute per liter of solution ; the 13th letter of the Roman alphabet ; the basic unit of length adopted under the Systeme International d'Unites (approximately 1.094 yards) ; the cardinal number that is the product of 10 and 100 ;

m-1

a semiautomatic rifle ;

m-1 rifle

a semiautomatic rifle ;

m-theory

(cosmology) 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. schleiden

German physiologist and histologist who in 1838 formulated the cell theory (1804-1881) ;

m.m.

the pace of music measured by the number of beats occurring in 60 seconds ;

m1

a measure of the money supply; includes currency in circulation plus demand deposits or checking account balances ;

m2

a measure of the money supply; M1 plus net time deposits (other than large certificates of deposit) ;

m3

a measure of the money supply; M2 plus deposits at institutions that are not banks (such as savings and loan associations) ;

ma

a master's degree in arts and sciences ; a state in New England; one of the original 13 colonies ; informal terms for a mother ; one thousandth of an ampere ;

ma'am

a woman of refinement; "a chauffeur opened the door of the limousine for the grand lady" ;

maalox

an antacid ;

maar

a flat-bottomed volcanic crater that was formed by an explosion; often filled with water ;

maarianhamina

a town that is the chief port of the Aland islands ;

mac

a waterproof raincoat made of rubberized fabric ;

macaca

macaques; rhesus monkeys ;

macaca irus

monkey of southeast Asia, Borneo and the Philippines ;

macaca mulatta

of southern Asia; used in medical research ;

macaca radiata

Indian macaque with a bonnet-like tuft of hair ;

macaca sylvana

tailless macaque of rocky cliffs and forests of northwestern Africa and Gibraltar ;

macadam

a paved surface having compressed layers of broken rocks held together with tar ; broken stone used in macadamized roadways ;

macadamia

any tree of the genus Macadamia ;

macadamia integrifolia

medium-sized tree of eastern Australia having creamy-white flowers ;

macadamia nut

nutlike seed with sweet and crisp white meat ; small Australian tree with racemes of pink flowers; widely cultivated (especially in Hawaii) for its sweet edible nuts ;

macadamia nut tree

small Australian tree with racemes of pink flowers; widely cultivated (especially in Hawaii) for its sweet edible nuts ;

macadamia ternifolia

small Australian tree with racemes of pink flowers; widely cultivated (especially in Hawaii) for its sweet edible nuts ;

macadamia tetraphylla

bushy tree with pink to purple flowers ;

macadamia tree

any tree of the genus Macadamia ;

macamba

tropical American feather palm having a swollen spiny trunk and edible nuts ;

macao

a former Portuguese province on the south coast of China and two islands in the South China Sea; reverted to China in 1999 ;

macao monetary unit

monetary unit in Macao ;

macaque

short-tailed monkey of rocky regions of Asia and Africa ;

macaroni

pasta in the form of slender tubes ; a British dandy in the 18th century who affected Continental mannerisms; "Yankee Doodle stuck a feather in his cap and called it macaroni" ;

macaroni and cheese

macaroni prepared in a cheese sauce ;

macaroni salad

having macaroni as the base ;

macaroni wheat

wheat with hard dark-colored kernels high in gluten and used for bread and pasta; grown especially in southern Russia, North Africa, and northern central North America ;

macaroon

chewy cookie usually containing almond paste ;

macarthur

United States general who served as chief of staff and commanded Allied forces in the South Pacific during World War II; he accepted the surrender of Japan (1880-1964) ;

macau

a former Portuguese province on the south coast of China and two islands in the South China Sea; reverted to China in 1999 ;

macaulay

English historian noted for his history of England (1800-1859) ;