splitter

noun

1. A person or a thing that splits.
2. A wedge used to cut logs down the middle.
3. A quarry worker who splits slate into sheets.
4. (colloquial)A scientist in one of various fields who prefers to split categories such as species or dialects up into smaller groups.
5. A split-finger fastball.
6. A draggable vertical or horizontal bar used to adjust the relative sizes of two adjacent windows.
7. (US)A wheaten cake split and buttered when hot.
8. One who splits hairs in argument, etc.
9. A device with two electrical plugs that plugs into an electrical outlet, effectively converting the electrical outlet into two; socket converter.
10. A line segment through one of the vertices of a triangle that bisects the perimeter of the triangle.