The term 'splitter' can be defined as a WEDGE, which is a tool used to separate two objects. It is usually made of metal or wood and has a sharp edge that is used to cut through the material. The term 'splitter' can also refer to a person who divides something into two or more parts. This could be a job description, such as splitting logs for firewood, or it could refer to someone who divides their time between two different jobs.