splitter
noun
split·ter ˈspli-tər 
1
: one that splits
2
: one who classifies organisms into numerous named groups based on relatively minor variations or characters compare lumper
3
: split-fingered fastball
Example Sentences
a three-way phone line splitter
Recent Examples on the Web The righthander has thrown 6 scoreless innings in six August appearances while striking out nine and featuring a fastball that has touched 98 mph with a splitter that has registered as high as 96 miles per hour, one of the hardest in the game. 
Alex Speier, BostonGlobe.com, 18 Aug. 2022 Kennedy sought out bullpen coach Mike Fetters, who threw a splitter during his career as a reliever. Nick Piecoro, The Arizona Republic, 17 June 2022 As a result, the front of the SUV features a more prominent grille (distinguished by its double-vane slats), as well as new air intakes and brake cooling ducts, while a new lower front splitter improves stability. Michael Harley, Robb Report, 4 May 2022 Pictures of the front of the car show off two layers of louvers set above the already aggressive front splitter. Jack Fitzgerald, Car and Driver, 30 July 2022 Mize, Skubal and Manning have been reunited for spring training in Lakeland, and will attempt to make the necessary improvements — such as Skubal focusing on his new splitter — in preparation for the majors. Evan Petzold, Detroit Free Press, 28 Feb. 2021 The Solus is glued to the asphalt thanks to ground-effect tunnels running the length of the car, fed by vents behind the large front splitter and spitting air out the back of the car via a cavernous rear diffuser. Caleb Miller, Car and Driver, 19 Aug. 2022 Eovaldi got 10 swings and misses total, including eight on 13 swings at his splitter. Julian Mcwilliams, BostonGlobe.com, 1 Aug. 2022 Walker used his splitter to end eight of his 10 strikeouts. Mike Digiovanna, Los Angeles Times, 12 June 2022 See More
Alex Speier, BostonGlobe.com, 18 Aug. 2022 Kennedy sought out bullpen coach Mike Fetters, who threw a splitter during his career as a reliever. Nick Piecoro, The Arizona Republic, 17 June 2022 As a result, the front of the SUV features a more prominent grille (distinguished by its double-vane slats), as well as new air intakes and brake cooling ducts, while a new lower front splitter improves stability. Michael Harley, Robb Report, 4 May 2022 Pictures of the front of the car show off two layers of louvers set above the already aggressive front splitter. Jack Fitzgerald, Car and Driver, 30 July 2022 Mize, Skubal and Manning have been reunited for spring training in Lakeland, and will attempt to make the necessary improvements — such as Skubal focusing on his new splitter — in preparation for the majors. Evan Petzold, Detroit Free Press, 28 Feb. 2021 The Solus is glued to the asphalt thanks to ground-effect tunnels running the length of the car, fed by vents behind the large front splitter and spitting air out the back of the car via a cavernous rear diffuser. Caleb Miller, Car and Driver, 19 Aug. 2022 Eovaldi got 10 swings and misses total, including eight on 13 swings at his splitter. Julian Mcwilliams, BostonGlobe.com, 1 Aug. 2022 Walker used his splitter to end eight of his 10 strikeouts. Mike Digiovanna, Los Angeles Times, 12 June 2022 See More Word History
First Known Use
1623, in the meaning defined at sense 1