any of various tools or machines for hollowing out, cutting grooves, etc
router2
/ˈruːtə/
noun
1.
(computing) a device that allows packets of data to be moved efficiently between two points on a network
Word Origin and History for routers
router
n.
"cutter that removes wood from a groove," 1818, from rout "poke about, rummage" (1540s), originally of swine digging with the snout; a variant of root (v.1).
routers in Science
router
(rou'tər) A device in a network that handles message transfers between computers. A router receives information and forwards it based on what the router determines to be the most efficient route at the time of transfer.