coil (koil)

1. A spiral or series of loops. 2. An object made of wire wound in a spiral configuration, used in electronic applications, or a loop of wire used as an antenna.
detector c. a c. used in magnetic resonance imaging as an antenna to record radiofrequency emissions of stimulated nuclei, e.g., body coil, head coil.
random c. a structure of a macromolecule (typically, a biopolymer) which changes with time.
surface c. a detector c. applied directly to a body part for high resolution imaging; often a single loop of metal.


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