hy·dro·ab·i·et·yl alcohol \ˌ ̷ ̷ ̷ ̷ at hydro-+əˈbīə]ˌtēl- or ˈabēə]\noun Etymology:hydroabietyl from hydr- + abiet- (from abietic acid) + -yl : a soft viscous resinous substance obtained by hydrogenation of the methyl ester of rosin and used especially as a plasticizer