The book where I found that fancy name you've probably never heard of neglected to give a collective noun for them.
That collective noun could therefore represent a great number of separate images.
But what of collective nouns like government, company, public?
The local paper found that the collective noun for the clan should be a plague!
The pupils had been asked to learn a list of collective nouns and were being tested on them.
"I think that a knowledge of the different collective nouns is very important."
"And when would the pupils be in a position to apply this extensive knowledge of the collective noun?"
This was to replace collective nouns with a unit of which they were made up.
One question I asked was, what would be the collective noun for a group of gingers?
It is used as the collective noun for everything?