Unfortunately, the most immediately discernible difference between men is one of class.

After over twenty years there is no discernible difference between the two classes of trees.

There was no discernible difference in heart rate during game play and after.

There was no discernible difference along the length of the corridor.

That is, there might have been some discernible difference in content between them.

He noted with a smile that there was a discernible difference between the way the game is played back home and in the city.

There is no discernible difference in meaning between the two forms.

In practice, there is often no longer any discernible difference between the two.

He turned, but from his vantage point could see no discernible difference.

I have tried them and found no discernible difference from the basic American brands.