A splitter is someone or something that splits things apart.
When we talk about a splitter, we usually mean a tool used for dividing something into two or more parts. You might use a hammer and chisel as splitters to break up rocks for gardening. A splitter can also be a machine designed specifically for splitting logs for firewood. In some cases, a splitter refers to a person who loves to argue and criticize others, but this is less common.
A splitter can sometimes mean the thing that causes something to split apart too – like a crack in the wall or a weak spot in an object.
How common is "splitter"?
Word splitter is considered rare in modern English. It appears most frequently in magazine texts and less often in other writings.
Definitions
noun
A person or a thing that splits.
A quarry worker who splits slate into sheets.
A scientist in one of various fields who prefers to split categories such as species or dialects up into smaller groups.
A split-finger fastball.
A draggable vertical or horizontal bar used to adjust the relative sizes of two adjacent windows.
A wheaten cake split and buttered when hot.
One who splits hairs in argument, etc.
A device with two electrical plugs that plugs into an electrical outlet, effectively converting the electrical outlet into two; socket converter.