A more thorough explanation:

Definition: Hanseatic (han-see-at-ik), adj. Hist. 1. Of or relating to the union of the Hanse Towns, usually referred to as the Hanseatic League. 2. Of or relating to a hanse or commercial alliance.

Examples:

• The Hanseatic League was a powerful alliance of trading cities in medieval Europe.
• The Hanseatic merchants dominated the Baltic Sea trade in the 14th and 15th centuries.
• The city of Lübeck was a leading member of the Hanseatic League.

The examples illustrate how the term "Hanseatic" refers to a historical period and commercial alliance. The Hanseatic League was a group of cities that worked together to protect their trade interests and dominate the market. The term can also be used to describe the merchants and cities that were part of this alliance.