| cyclosteroids | Steroid derivatives in which one or more bridges is formed between carbon atoms at any locant in any of the rings. (12 Dec 1998) |
|---|---|
| cyclothiazide | 6-Chloro-3,4-dihydro-3-(2-norbornen-5-yl)-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide;a diuretic and antihypertensive. (05 Mar 2000) |
| cyclothymia | A mental disorder characterised by marked swings of mood from depression to hypomania but not to the degree that occurs in bipolar disorder. Origin: cyclo-+ G. Thymos, rage (05 Mar 2000) |
| cyclothymiac | Cyclothymic Relating to cyclothymia. (05 Mar 2000) |
| cyclothymic disorder | An affective disorder characterised by periods of depression and hypomania. These may be separated by periods of normal mood. (12 Dec 1998) |
| cyclothymic personality | A personality disorder in which a person experiences regularly alternating periods of elation and depression, (see bipolar illness) usually not related to external circumstances or situation. (27 Sep 1997) |
| cyclothymic personality disorder | A personality disorder in which a person experiences regularly alternating periods of elation and depression, (see bipolar illness) usually not related to external circumstances or situation. (27 Sep 1997) |
| cyclotomy | Operation of cutting the ciliary muscle. Origin: cyclo-+ G. Tome, incision (05 Mar 2000) |
| cyclotorsion | Rotation of the eye around its visual axis. Synonym: circumduction, cyclotorsion. Origin: cyclo-+ L. Duco, pp. Ductus, to draw (05 Mar 2000) |
| cyclotron | <radiobiology> Particle accelerator in which a magnetic field causes particles to orbit in circles, and an oscillating electric field accelerates the particles. (09 Oct 1997) |
| cyclotron frequency | <radiobiology> Number of times per second that a particle orbits a magnetic field line. The frequency is completely determined by the strength of the field and the particle's charge-to-mass ratio. (Often, and incorrectly, called the Larmor frequency. The cyclotron or gyrofrequency is twice the Larmor frequency of precession.) (09 Oct 1997) |
| cyclotron radius | <radiobiology> Radius of orbit of charged particle about a magnetic field line. Synonym: gyroradius, Larmor radius. (09 Oct 1997) |
| cyclotron resonance | <radiobiology> Charged particles in a magnetic field resonate with (and absorb energy from) an electric field (perpendicular to the magnetic field) which oscillates at the particles' cyclotron frequency, or at a harmonic (multiple) of that frequency. (09 Oct 1997) |
| cyclotrons | Devices for accelerating charged particles in a spiral path by a constant-frequency alternating electric field. This electric field is synchronised with the movement of the particles in a constant magnetic field. (12 Dec 1998) |
| cyclotropia | A disparity of ocular position in which one eye is rotated around its visual axis, with respect to the other eye. Origin: cyclo-+ G. Trope, a turn, turning (05 Mar 2000) |