No it's not. "Dangerous goods" in shipping terms is a specific term for a very broad category with multiple subcategories of goods covered by (in this context) the international maritime code on dangerous goods which enumerates in mind numbing detail what goods are covered and what arent. Anybody in the business, who this site is for, will know what "dangerous goods" refers to. Just because you don't know the meaning of a term doesn't mean it's not very precisely defined.