propolis
/ˈprɑpəlɪs/
noun
- A sticky, resinous substance made by bees from tree sap and used to seal gaps in their hives and protect against bacteria and fungi.
- Beekeepers collect propolis from hives because it has natural antibacterial properties.
- Some people use propolis in natural remedies for sore throats and colds.
- The bees spread propolis around the hive entrance to keep out drafts and invaders.