| arcanum | (noun) information known only to a special group | Synonyms: secret |
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| galbanum | (noun) a bitter aromatic gum resin that resembles asafetida | Synonyms: gum albanum |
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| labdanum | (noun) a soft blackish-brown resinous exudate from various rockroses used in perfumes especially as a fixative | Synonyms: ladanum |
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| (noun) 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 |
| ladanum | (noun) a soft blackish-brown resinous exudate from various rockroses used in perfumes especially as a fixative | Synonyms: labdanum |
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| lanthanum | (noun) a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth | Synonyms: atomic number 57, La |
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| laudanum | (noun) narcotic consisting of an alcohol solution of opium or any preparation in which opium is the main ingredient | Synonyms: tincture of opium |
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| olibanum | (noun) an aromatic gum resin obtained from various Arabian or East African trees; formerly valued for worship and for embalming and fumigation | Synonyms: frankincense, gum olibanum, thus |
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| origanum | (noun) any of various fragrant aromatic herbs of the genus Origanum used as seasonings | - |
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| tympanum | (noun) a large hemispherical brass or copper percussion instrument with a drumhead that can be tuned by adjusting the tension on it | Synonyms: kettle, kettledrum, timpani, tympani |
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| (noun) the membrane in the ear that vibrates to sound | Synonyms: eardrum, myringa, tympanic membrane |
| (noun) the main cavity of the ear; between the eardrum and the inner ear | Synonyms: middle ear, tympanic cavity |