There are multiple definitions - click on the translation that matches your context.
commercial practice means:
substantiv
full
noun
In the context of consumer protection, defined in section 5(d) of the Norwegian Marketing Control Act as any act, omission, conduct or representation, commercial communication - including advertising and marketing - by a trader which is directly connected to the promotion, sale or supply of a product to consumers.
the business of a lawyer or law firm focusing on commercial law
The commercial practice group of Moley & Stansfield is well-equipped to meet the needs of businesses, banks, developers and entrepreneurs in every aspect of their operations.