Frankincense or myrrh, for example (5)
I believe the answer is:
resin
I believe this is a double definition.
'frankincense' is the first definition.
(thesaurus)
'myrrh for example' is the second definition.
(myrrh is a kind of resin)
(Other definitions for resin that I've seen before include "Sticky stuff oozing from trees" , "Sticky stuff from pine trees" , "Synthetic substance" , "Sticky exudation from trees" , "Exudation from fir trees" .)