magnetic resonance imaging
MRI | the use of nuclear magnetic resonance of protons to produce proton density images |
functional magnetic resonance imaging
fMRI | a form of magnetic resonance imaging of the brain that registers blood flow to functioning areas of the brain |
blood-oxygenation level dependent functional magnetic resonance imaging
BOLD FMRI | functional magnetic resonance imaging that relies on intrinsic changes in hemoglobin oxygenation |
magnetic levitation
maglev | high-speed rail technology, train is suspended on a magnetic cushion above a magnetized track and so travels free of friction |
| 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 |
| coaster brake | a brake on a bicycle that engages with reverse pressure on the pedals |
| core magnetic core | (computer science) a tiny ferrite toroid formerly used in a random access memory to store one bit of data, now superseded by semiconductor memories, each core has three wires passing through it, providing the means to select and detect the contents of each bit |
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 |
| 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 |
| magnetic bottle | container consisting of any configuration of magnetic fields used to contain a plasma during controlled thermonuclear reactions |
| magnetic bubble memory | a nonvolatile storage device that holds information in the form of bubbles on a thin film of magnetic silicate, no longer used in most computers |
| magnetic compass | compass based on an indicator (as a magnetic needle) that points to the magnetic north |
magnetic core memory
core memory | (computer science) a computer memory consisting of an array of magnetic cores, now superseded by semiconductor memories |
magnetic disk
magnetic disc
disk disc | (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored |
| magnetic head | an electromagnet (as on a tape recorder) that converts electrical variations into magnetic variations that can be stored on a surface and later retrieved |
| magnetic mine | (nautical) a marine mine that is detonated by a mechanism that responds to magnetic material (as the steel hull of a ship) |
| magnetic needle | a slender magnet suspended in a magnetic compass on a mounting with little friction, used to indicate the direction of the earth's magnetic pole |
| magnetic recorder | recorder consisting of equipment for making records on magnetic media |
| magnetic stripe | a short strip of magnetic tape attached to a credit card or debit card, it contains data that will tell a reading device who you are and what your account number is, etc. |
magnetic tape
mag tape
tape | memory device consisting of a long thin plastic strip coated with iron oxide, used to record audio or video signals or to store computer information, he took along a dozen tapes to record the interview |
negative magnetic pole
negative pole
south-seeking pole | the pole of a magnet that points toward the south when the magnet is suspended freely |
| pole magnetic pole | one of the two ends of a magnet where the magnetism seems to be concentrated |
positive pole
positive magnetic pole
north-seeking pole | the pole of a magnet that points toward the north when the magnet is suspended freely |
| 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 |
| shooting brake | another name for a station wagon |
magnetic field strength
magnetic intensity
magnetic induction
magnetic flux density | the amount of magnetic flux in a unit area perpendicular to the direction of magnetic flow |
magnetic storage medium
magnetic medium
magnetic storage | any storage medium in which different patterns of magnetization are used to represent stored bits or bytes of information, the hard disk in you computer is magnetic storage |
| 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 |
| magnetic storm | a sudden disturbance of the earth's magnetic field, caused by emission of particles from the sun |
| brake | an area thickly overgrown usually with one kind of plant |
aclinic line
magnetic equator | an imaginary line paralleling the equator where a magnetic needle has no dip |
| magnetic pole | either of two points where the lines of force of the Earth's magnetic field are vertical |
| magnetic meridian | an imaginary line passing through both magnetic poles of the Earth |
| magnetic dipole | a dipole with opposing magnetic poles |
| magnetic monopole | a hypothetical particle with a single magnetic pole instead of the usual two |