ladanum

 
Pronunciation: /ˈlad(ə)nəm/
(also labdanum)

noun

[mass noun]
  • a gum resin obtained from the twigs of a southern European rock rose, used in perfumery and for fumigation.
    • The rock rose is usually Cistus ladanifer, family Cistaceae

Origin:

mid 16th century: via Latin from Greek ladanon, lēdanon, from lēdon 'mastic'