ˈ ̷ ̷ˌ ̷ ̷| ̷ ̷ adjective
: containing relatively large amounts of asphalt-forming substances : yielding asphaltic residues on refining — used especially of crude petroleum; compare naphthene-base , paraffin-base
ˈ ̷ ̷ˌ ̷ ̷| ̷ ̷ adjective
: containing relatively large amounts of asphalt-forming substances : yielding asphaltic residues on refining — used especially of crude petroleum; compare naphthene-base , paraffin-base
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012