gum olibanum vs olibanum

gum olibanum and olibanum both are nouns.

Word	Noun	Adjective	Verb	Adverb
gum olibanum	Yes	No	No	No
olibanum	Yes	No	No	No

As nouns, gum olibanum and olibanum are synonyms defined as:

gum olibanum and olibanum: an aromatic gum resin obtained from various Arabian or East African trees; formerly valued for worship and for embalming and fumigation

Other synonyms of gum olibanum include frankincense, thus.

gum olibanum (noun)	olibanum (noun)
an aromatic gum resin obtained from various Arabian or East African trees; formerly valued for worship and for embalming and fumigation	an aromatic gum resin obtained from various Arabian or East African trees; formerly valued for worship and for embalming and fumigation