Definition of "splitter"

A person or a thing that splits.  examples

A wedge used to cut logs down the middle.  examples

A quarry worker who splits slate into sheets.  examples

(colloquial) A scientist in one of various fields who prefers to split categories such as species or dialects up into smaller groups.  examples

(baseball) A split-finger fastball.  examples

(graphical user interface) A draggable vertical or horizontal bar used to adjust the relative sizes of two adjacent windows.  examples

(US) A wheaten cake split and buttered when hot.  examples

One who splits hairs in argument, etc.  examples

A device with two electrical plugs that plugs into an electrical outlet, effectively converting the electrical outlet into two; socket converter.  examples