(physics) The absorption of radiation by species having unpaired electrons when placed in a magnetic field that is used spectroscopically to detect and study free radicals

(physics) A metamaterial component composed of pair of concentric annular rings with splits in them at opposite ends. The rings are made of a nonmagnetic metal, such as copper, and have a small gap between them.

plural of split-ring resonator

magnetic resonance imaging

plural of electron spin resonance

Synonym of electron spin resonance

The application of magnetic resonance imaging to blood vessels

(medicine) A form of magnetic resonance imaging that records the flow of blood to areas of the brain when the patient is undertaking a specific neural activity.

(physics, dynamics) A theoretical type of drive that does not conform to Newton's Laws of Motion, violating the conservation of momentum, using a resonant cavity where microwaves are beamed.