propolis

 
Pronunciation: /ˈprɒp(ə)lɪs/

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.

Origin:

early 17th century: via Latin from Greek propolis 'suburb', also 'bee glue', from pro 'before' + polis 'city'