Infinite scroll is an user experience pattern where sequential pages are loaded automatically when the user scrolls to the bottom of the page.

Infinite scrolling works by tracking the user's scroll position. When the bottom of the page is reached, the next page will be loaded (in the background with AJAX) and the new items are inserted into the page.

It depends on the implementation if infinite scroll can be turned off. Mostly this is not the case. Considering that all infinite scroll implementations depend on JavaScript, you could disable JavaScript in your browser.