| baseball coil | <radiobiology> Used in magnetic-mirror geometries to produce a minimum-B configuration, so-called because of their resemblance to the characteristic shape of stitches on a baseball. (09 Oct 1997) |
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| random coil | A structure of a macromolecule (typically, a biopolymer) which changes with time. (05 Mar 2000) |
| rogowski loop or coil | <radiobiology> A coiled wire loop which encircles a current-carrying plasma. Changes in total plasma current induce a voltage in the loop, integrating (adding up) the voltage over time gives the plasma current. (09 Oct 1997) |
| ruhmkorff's coil | <physics> See Induction coil, under Induction. Origin: So called from its inventor, Ruhmkorff, a german physicist. Source: Websters Dictionary (01 Mar 1998) |
| coil | 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. (05 Mar 2000) |
| coil gland | A gland whose secretory part is convoluted. Synonym: convoluted gland. (05 Mar 2000) |
| poloidal field coil | <radiobiology> In toroidal devices (e.g., tokamaks), the sets of windings which are (typically) aligned along the plasma axis and produce poloidal fields. These include ohmic heating, shaping, vertical, equilibrium, and divertor windings. (09 Oct 1997) |
| helix-coil transition | <molecular biology> A change in the structure of a nucleic acid or protein molecule from a highly ordered, complex structure to a random, chaotic structure. Also means that the protein or nucleic acid becomes denatured. (09 Oct 1997) |
| surface coil | A detector coil applied directly to a body part for high resolution imaging; often a single loop of metal. (05 Mar 2000) |
| detector coil | A coil used in magnetic resonance imaging as an antenna to record radiofrequency emissions of stimulated nuclei, e.g., body coil, head coil. (05 Mar 2000) |
| e-coil | <radiobiology> The plasma current driving (Ohmic Heating) coil in a Doublet device. Ideally the E-coil makes no magnetic field in the confinement system. (09 Oct 1997) |
| atrioventricular gradient | The diastolic pressure difference between the atrium and ventricle. (05 Mar 2000) |
| magnetic field gradient | In magnetic resonance imaging, a magnetic field that varies with location, superimposed on the uniform field of the magnet, to alter the resonant frequency of nuclei and allow recovery of their spatial position. Synonym: field gradient. (05 Mar 2000) |
| ventricular gradient | The algebraic sum of (i.e., the net electrical difference between) the area enclosed within the QRS complex and that within the T wave in the electrocardiogram. (05 Mar 2000) |
| voltage gradient | <physiology> Literally, the electric field in a region, defined as the potential difference between two points divided by the distance between them. Used more loosely, the potential difference across a plasma membrane. (18 Nov 1997) |