| AF | abnormal frequency; acid-fast; adult female; afebrile; aflatoxin; albumin-free; albumose-free; aldeh... |
|---|---|
| FTC | Federal Trade Commission; follicular thyroid carcinoma; frequency threshold curve; frequency tuning ... |
| HFO | high-frequency oscillator; high-frequency oscillatory [ventilation] |
| Hfr | heart frequency; high frequency |
| HFT | high-frequency transduction; high-frequency transfer |
| psychogenic deafness | Hearing loss without evidence of organic cause or malingering; often follows severe psychic shock. Synonym: functional deafness, hysterical deafness. (05 Mar 2000) |
|---|---|
| sensorineural deafness | Hearing impairment due to disorders of the cochlear division of the 9th cranial nerve (auditory nerve), the cochlea, or the retrocochlear nerve tracts, as opposed to conductive deafness. (05 Mar 2000) |
| hysterical deafness | Hearing loss without evidence of organic cause or malingering; often follows severe psychic shock. Synonym: functional deafness, hysterical deafness. (05 Mar 2000) |
| nerve deafness | Neural deafness, former terms for sensorineural deafness. (05 Mar 2000) |
| noise-induced deafness | A type of sensorineural deafness caused by prolonged exposure to loud sounds, e.g., jet engines. (05 Mar 2000) |
| deafness | A condition in which the sense of hearing in both ears is not functional for ordinary purposes of life. The hearing level for speech is approximately 71 decibels I.s.o. (international organization for standardization) or 61 db a.s.a. (american standards association) or greater. (12 Dec 1998) |
| deafness, sudden | Sensorineural hearing loss which develops over a period of hours or a few days, varying in severity from mild to total. (12 Dec 1998) |
| industrial deafness | Synonym: acoustic trauma deafness. (05 Mar 2000) |
| occupational deafness | Sensorineural hearing loss due to overexposure to high intensity noise levels. Synonym: boilermaker's deafness, industrial deafness, occupational deafness. (05 Mar 2000) |
| organic deafness | Deafness due to a pathologic process or an organic aetiology, as opposed to psychogenic deafness. (05 Mar 2000) |
| functional deafness | Hearing loss without evidence of organic cause or malingering; often follows severe psychic shock. Synonym: functional deafness, hysterical deafness. (05 Mar 2000) |
| low tone deafness | Inability to hear low notes or frequencies. (05 Mar 2000) |
| bounce frequency | <physics> The average frequency of oscillation of a particle trapped in a magnetic mirror as it bounces back and forth between its turning points in regions of high magnetic field. (See also trapped particle, turning points, banana orbit). (09 Oct 1997) |
| radio frequency current drive | <radiobiology> Plasma waves in the radio-frequency range can be used to push plasma particles in such a way that current forms in the plasma, this is a method of non-inductive current drive which would allow for steady-state fusion reactors to operate. (09 Oct 1997) |
| radio frequency heating | <radiobiology> Process for heating the plasma by transferring energy to ions or electrons using waves generated by an external oscillator at an appropriate frequency. (This is similar to how a microwave oven heats food.) There are various types: See: ECRH, ICRH, and Lower Hybrid. (09 Oct 1997) |