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countable and uncountable, plural olibanums
A gum resin from trees of the genus Boswellia, formerly used as a medicine and now mainly as incense. quotations examples
Aromatics were used, too, especially in necromancy, and an old recipe of that sort comprises Musk, Myrrh, Frankincense, Red Storax, Mastick, Olibanum, Saffron, Benzoin and Labdanum.
1936, Rollo Ahmed, The Black Art, London: Long, page 112