| 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) |
| cyclozoonosis | A zoonosis that requires more than one vertebrate host (but no invertebrate) for completion of the life cycle; e.g., various taenioid cestodes such as Taenia saginata and T. Solium in which humans are an obligatory host; hydatid disease, a cyclozoonosis in which man is not an obligatory host. Origin: cyclo-+ G. Zoon, animal, + nosos, disease (05 Mar 2000) |
| cycrimine hydrochloride | 1-Phenyl-1-cyclopentyl-3-piperidino-1-propanol hydrochloride;an anticholinergic drug used in the treatment of parkinsonism. (05 Mar 2000) |
| Cyd | Symbol for cytidine. (05 Mar 2000) |
| cyesis | An obsolete term for pregnancy. Origin: G. Kyesis (05 Mar 2000) |
| cyheptamide | 10,11-Dihydro-5H-dibenzo[a,d]cycloheptene-5-carboxamide;an anticonvulsant. (05 Mar 2000) |