Underground Railroad
Underground Railway | secret aid to escaping slaves that was provided by abolitionists in the years before the American Civil War |
| operating procedure | a procedure for operating something or for dealing with a given situation |
standing operating procedure
standard operating procedure
SOP
standard procedure | a prescribed procedure to be followed routinely, rote memorization has been the educator's standard operating procedure for centuries |
| airbrake dive brake | a small parachute or articulated flap to reduce the speed of an aircraft |
| brake | a restraint used to slow or stop a vehicle |
| brake | anything that slows or hinders a process, she wan not ready to put the brakes on her life with a marriage, new legislation will put the brakes on spending |
| brake band | a band that can be tightened around a shaft to stop its rotation |
brake cylinder
hydraulic brake cylinder
master cylinder | a cylinder that contains brake fluid that is compressed by a piston |
| brake disk | a disk or plate that is fixed to the wheel, pressure is applied to it by the brake pads |
brake drum
drum | a hollow cast-iron cylinder attached to the wheel that forms part of the brakes |
| brake lining | the lining on the brake shoes that comes in contact with the brake drum |
| brake pad | one of the pads that apply friction to both sides of the brake disk |
| brake pedal | foot pedal that moves a piston in the master brake cylinder |
brake shoe
shoe skid | a restraint provided when the brake linings are moved hydraulically against the brake drum to retard the wheel's rotation |
brake system
brakes | a braking device consisting of a combination of interacting parts that work to slow a motor vehicle |
cable railway
funicular
funicular railway | a railway up the side of a mountain pulled by a moving cable and having counterbalancing ascending and descending cars |
car railcar
railway car
railroad car | a wheeled vehicle adapted to the rails of railroad, three cars had jumped the rails |
| coaster brake | a brake on a bicycle that engages with reverse pressure on the pedals |
cog railway
rack railway | railway for steep mountains, a cogwheel on the locomotive engages cogs on a center rail to provide traction |
disk brake
disc brake | hydraulic brake in which friction is applied to both sides of a spinning disk by the brake pads |
| drum brake | hydraulic brake in which friction is applied to the inside of a spinning drum by the brake shoe |
elevated railway
elevated railroad
elevated
el
overhead railway | a railway that is powered by electricity and that runs on a track that is raised above the street level |
| foot brake | hydraulic brake operated by pressing on a foot pedal |
hand brake
emergency
emergency brake
parking brake | a brake operated by hand, usually operates by mechanical linkage |
hydraulic brake
hydraulic brakes | brake system in which a brake pedal moves a piston in the master cylinder, brake fluid then applies great force to the brake pads or shoes |
line railway line
rail line | the road consisting of railroad track and roadbed |
locomotive
engine locomotive engine
railway locomotive | a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks |
| operating microscope | binocular microscope used in surgery to provide a clear view of small and inaccessible parts of the body (as in microsurgery) |
operating room
OR
operating theater
operating theatre
surgery | a room in a hospital equipped for the performance of surgical operations, great care is taken to keep the operating rooms aseptic |
| operating table | table on which the patient lies during a surgical operation |
| power brake | a brake on an automobile that magnifies a small force applied to the brake pedal into a proportionately larger force applied to slow or stop the vehicle |
railroad track
railroad railway | a line of track providing a runway for wheels, he walked along the railroad track |
railway
railroad
railroad line
railway line railway system | line that is the commercial organization responsible for operating a system of transportation for trains that pull passengers or freight |
| railway junction | a junction where two or more railway lines meet or cross |
railway station
railroad station
railroad terminal
train station
train depot | terminal where trains load or unload passengers or goods |
| scenic railway | small railway in an amusement park |
| shooting brake | another name for a station wagon |
yard railway yard
railyard | an area having a network of railway tracks and sidings for storage and maintenance of cars and engines |
operating capability
performance capability | the capability of a technological system to perform as intended |
instruction manual
instructions
book of instructions
operating instructions | a manual usually accompanying a technical device and explaining how to install or operate it |
operating system
OS | (computer science) software that controls the execution of computer programs and may provide various services |
DOS
disk operating system | an operating system that is on a disk |
MS-DOS
Microsoft disk operating system | an operating system developed by Bill Gates for personal computers |
UNIX
UNIX system
UNIX operating system | trademark for a powerful operating system |
| stoplight brake light | a red light on the rear of a motor vehicle that signals when the brakes are applied to slow or stop |
| brake failure | brakes fail to stop a vehicle |
| brake | an area thickly overgrown usually with one kind of plant |
chief executive officer
CEO
chief operating officer | the corporate executive responsible for the operations of the firm, reports to a board of directors, may appoint other managers (including a president) |
surgeon
operating surgeon
sawbones | a physician who specializes in surgery |
trainman
railroader
railroad man
railwayman
railway man | an employee of a railroad |