hydrocarbon
hy.dro.car.bon or hy.dro.car.bon.ic or hy.dro.car.bon.ous \.hi--dr*-'ka:r-b*n\ \-.ka:r-b*-'na--sh*s\ \-'ba:n-ik\ \-'ka:r-b*-n*s\ n : an organic compound (as acetylene or benzene) containing only carbon and hydrogen and often occurring in petroleum, natural gas, coal, and bitumens - hy.dro.car.bo.na.ceous aj