| n. | 1. | (Bot.) See Ladanum. |
| Noun | 1. | labdanum - a dark brown to greenish oleoresin that has a fragrant odor and is used as a fixative in perfumes; obtained as a juice from certain rockroses Synonyms: gum labdanum |
| 2. | labdanum - a soft blackish-brown resinous exudate from various rockroses used in perfumes especially as a fixative Synonyms: ladanum |