Definition of frankincense
: a fragrant gum resin from trees of a genus (Boswellia of the family Burseraceae) of Somalia and southern coastal Arabia that is an important incense resin and has been used in religious rites, perfumery, and embalming
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Merriam-Webster unabridged
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Time Traveler for frankincense
The first known use of frankincense was in the 14th century
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