Which major naval power lost its domination of the seas as a result of the Battle of Trafalgar?

The major naval power that lost its domination of the seas as a result of the Battle of Trafalgar was France.

To arrive at this answer, we need to understand the historical context and analyze the events surrounding the Battle of Trafalgar. Here's how you can find the answer:

1. Understand the Battle of Trafalgar: The Battle of Trafalgar took place on October 21, 1805, during the Napoleonic Wars. It was a naval battle between the combined fleets of France and Spain against the British Royal Navy.

2. Identify the contenders: The major naval powers involved were France and Great Britain. These two nations were engaged in a fierce rivalry for dominance of the seas during that time.

3. Analyze the outcome: The outcome of the Battle of Trafalgar was a decisive victory for the British. Under the command of Admiral Horatio Nelson, the British fleet defeated the Franco-Spanish fleet and prevented an invasion of Britain.

4. Determine the impact: The loss at the Battle of Trafalgar significantly weakened France's naval power. It effectively ended Napoleon's plans for a large-scale invasion of Britain and ensured British naval supremacy for the remainder of the Napoleonic Wars.

Therefore, the major naval power that lost its domination of the seas as a result of the Battle of Trafalgar was France.

The major naval power that lost its domination of the seas as a result of the Battle of Trafalgar was the French navy.