any of a class of compounds containing only hydrogen and carbon, as an alkane, methane, CH4, an alkene, ethylene, C2H4, an alkyne, acetylene, C2H2, or an aromatic compound, benzene, C6H6.
hy·dro·car·bon (hī'drə-kär'bən) n. Any of numerous organic compounds, such as benzene and methane, that contain only carbon and hydrogen. hy'dro·car'bo·na'ceous (-bə-nā'shəs), hy'dro·car·bon'ic (-bŏn'ĭk), hy'dro·car'bon·ous (-bə-nəs) adj.
Main Entry: hy·dro·car·bon Pronunciation: -'kär-b&n Function: noun : an organic compound (as acetylene, benzene, or butane)containing only carbon and hydrogen and often occurring in petroleum, natural gas, coal, and bitumens