natural resin
animé
congo copal
congo gum
copaline
copalite
courbaril copal
fossil copal
kauri
kauri copal
kauri gum
kauri resin
zanzibar copal
alkyd
beta-amyloid
daughterly
degradable
dissolvable
fotch
golden-tinged
ion-exchange
kyphii
lill
looky
membrane-bound
natron
nuss
pleasant-smelling
polyimide
polyurethane
pyroxyline
seed-lac
uncured
urethane
we-all