Is there a word or slang word that can be used to describe something that is invisible on its own and in numbers it is visible?
For example:
One bacterium is hard to see (invisible to the naked eye) but when there is a huge population of bacteria it can be seen (visible to the naked eye)
I used the concept of bacteria to further my point but I don't necessarily mean microscopic organisms.
Edit:
Another example:
One star is hard to see from a distance but when you look at a galaxy (collection of stars) from the same distance visibility is significantly increased.
The use of the word would be in terms of population.
An individual alone in a population vs a large group in a population.