Ladanum
Pronunciation : Lad"a*num
Part of Speech : n.
Etymology : [L. ladanum, ledanum, Fr. (ladan, laden. Cf. Laudanum.]
Definition : Defn: A gum resin gathered from certain Oriental species of Cistus. It has a pungent odor and is chiefly used in making plasters, and for fumigation. [Written also labdanum.]
Source : Webster's Unabridged Dictionary, 1913