1. A thick black tar intermediate between petroleum and asphalt
   - mineral tar

Derived forms: malthas

Type of: mineral

• olfaction
• olfactive
• olfactory
• olfactory brain
• olfactory bulb
• olfactory impairment
• olfactory modality
• olfactory nerve
• olfactory organ
• olfactory perception
• olfactory property
• olfactory sensation
• Olfersia
• Olfersia cervina
• Olga Korbut
• olibanum
• oligarch
• oligarchic
• oligarchical
• oligarchy
• oligo-
• Oligocene
• Oligocene epoch
• Oligochaeta
• oligochaete