noun
or congo gum
Usage: usually capitalized Congo
: a hard insoluble colorless to amber copal derived especially from certain trees of the genus Copaifera but found chiefly as a fossil resin in the Congo and used in making varnish
noun
or congo gum
Usage: usually capitalized Congo
: a hard insoluble colorless to amber copal derived especially from certain trees of the genus Copaifera but found chiefly as a fossil resin in the Congo and used in making varnish
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012