ˈlabdənəm noun
or lad·a·num -ad ə n-
( -s )
Etymology: Medieval Latin lapdanum, from Latin ladanum, ledanum, from Greek ladanon, lēdanon, from lēdon rockrose, of Semitic origin
: a soft blackish brown to greenish oleoresin that is obtained from various rockroses (as Cistus ladanum, C. creticus ), has a fragrant odor and bitter taste, and is used in perfumes especially as a fixative