Page loads are consulted at the page level. They represent the number of times that a specific page has been loaded, all visits combined.
Pageviews are consulted at the global level. They represent the total number of loads.
Consider this example of a visit: Page A => Page B => Page C => Page A
For the entire visit, I'll see: 4 pageviews
For Page A, I'll see: 2 loads
For Page B, I'll see: 1 load
For Page C, I'll see: 1 load