propolis
/ˈprɒpəlɪs/noun
mass noun
- a red or brown resinous substance collected by honeybees from tree buds, used by them to fill crevices and to fix and varnish honeycombs蜂胶。
词源
early 17th cent.: via Latin from Greek propolis 'suburb'，also 'bee glue'，from pro 'before'+polis 'city'.