S: (n) self-feeder, feeder (a machine that automatically provides a supply of some material) "the feeder discharged feed into a trough for the livestock"
S: (n) perpetual motion machine (a machine that can continue to do work indefinitely without drawing energy from some external source; impossible under the law of conservation of energy)
S: (n) record player, phonograph (machine in which rotating records cause a stylus to vibrate and the vibrations are amplified acoustically or electronically)
S: (n) self-feeder, feeder (a machine that automatically provides a supply of some material) "the feeder discharged feed into a trough for the livestock"
S: (n) simulator (a machine that simulates an environment for the purpose of training or research)
S: (n) slicer (a machine for cutting; usually with a revolving blade)