[1] : The Collaborative International Dictionary of English v.0.48

ladanum \lad"anum\, n. l. ladanum, ledanum, gr. la`danon,
   lh`danon, fr. lh^don name of a shrub, mastic; cf. per.
   l=adan, l=aden. cf. laudanum.
   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.
   1913 webster
see also:
laudanum cistus labdanum 

[2] : The Collaborative International Dictionary of English v.0.48

rockrose \rock"rose`\, n. bot.
   a name given to any species of the genus helianthemum, low
   shrubs or herbs with yellow flowers, especially the european
   helianthemum vulgare and the american frostweed,
   helianthemum canadense.
   1913 webster

   cretan rockrose, a related shrub cistus creticus, one
      of the plants yielding the fragrant gum called ladanum.
      1913 webster
see also:
helianthemum helianthemum vulgare helianthemum canadense cretan rockrose cistus creticus ladanum 

[3] : WordNet (r) 2.0

ladanum
     n : a soft blackish-brown resinous exudate from various
         rockroses used in perfumes especially as a fixative syn:
          labdanum
see also:
labdanum 

Ladanum >> L Words
Ladanum, definition of term: Ladanum
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