This is a core WordPress DB table. Do not remove. Learn more: https://codex.wordpress.org/Database_Description
If you’re like me you install and uninstall a lot of WordPress plugins, widgets, and themes.
My issue, (maybe yours as well?) is the tables left behind in your db by old plugins. Some developers name their tables nicely but not all so it’s not always simple to identify who put what there.
I’ll begin by identifying the core tables WordPress installs and then branch out to identify tables that had me scratching my head.