Main Entry: mac·ad·am
Pronunciation: m&-'ka-d&m
Function: noun
Etymology: John L. McAdam died 1836 British engineer
: macadamized roadway or pavement especially with a bituminous binder
Main Entry: bi·tu·mi·nous
Pronunciation: b&-'tyü-m&-n&s, bI-, -'tü-
Function: adjective
1 : containing or impregnated with bitumen
2 : of or relating to bituminous coal
Main Entry: bi·tu·men
Pronunciation: b&-'tyü-m&n, bI-, -'tü-, especially British also 'bit-y&-
Function: noun
Etymology: Middle English bithumen mineral pitch, from Latin bitumin-, bitumen
1 : an asphalt of Asia Minor used in ancient times as a cement and mortar
2 : any of various mixtures of hydrocarbons (as tar) often together with their nonmetallic derivatives that occur naturally or are obtained as residues after heat-refining natural substances (as petroleum); specifically : such a mixture soluble in carbon disulfide
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