When you try to mix any kind of liquid with some dry powder, they don't mix well and you can see those unmixed powder form into sort of bubbles!
Is there any good word to describe those? If there is no such word, what would be a concise and clear way to describe those?
I was calling it 'unmixed powder clutters' and did not like it much.
It does not have be formal. Any kind of expression that would be clear enough would be fine.