| flying | Moving in the air with, or as with, wings; moving lightly or rapidly; intended for rapid movement. <astronomy> Flying army, a torch attached to a long staff and used for signaling at night. Origin: From Fly. Source: Websters Dictionary (01 Mar 1998) |
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| flying blister | A misnomer for a vesicator agent applied successively to different skin areas and kept in one place just long enough to cause redness but not long enough to cause a blister. (05 Mar 2000) |
| flying fish | <zoology> A fish which is able to leap from the water, and fly a considerable distance by means of its large and long pectoral fins. These fishes belong to several species of the genus Exocoetus, and are found in the warmer parts of all the oceans. Source: Websters Dictionary (01 Mar 1998) |
| flying spot microscope | <instrument> A microscope in which a moving spot of light is imaged in the object plane, the energy transmitted by the specimen being detected with a photoelectric cell; the light source may be a cathode ray tube, a scanning disk or drum, or an oscillating mirror. (05 Mar 2000) |
| flying squirrel | <zoology> One of a group of squirrels, of the genera Pteromus and Sciuropterus, having parachute-like folds of skin extending from the fore to the hind legs, which enable them to make very long leaps. The species of Pteromys are large, with bushy tails, and inhabit southern Asia and the East Indies; those of Sciuropterus are smaller, with flat tails, and inhabit the northern parts of Europe, Asia, and America. The American species (Sciuropterus volucella) is also called Assapan. The Australian flying squrrels, or flying phalangers, are marsupials. See Flying phalanger (above). Source: Websters Dictionary (01 Mar 1998) |
| auditory fatigue | Loss of sensitivity to sounds as a result of auditory stimulation, manifesting as a temporary shift in auditory threshold. The temporary threshold shift, tts, is expressed in decibels. (12 Dec 1998) |
| battle fatigue | The World War II name for what is known today as posttraumatic stress, this is a psychological disorder that develops in some individuals who have had major traumatic experiences (and, for example, have been in a serious accident or through a war). The person is typically numb at first but later has symptoms including depression, excessive irritability, guilt (for having survived while others died), recurrent nightmares, flashbacks to the traumatic scene, and overreactions to sudden noises. Posttraumatic stress became known as such in the 70s due to the adjustment problems of some Vietnam veterans. (12 Dec 1998) |
| mental fatigue | Fatigue arising in consequence of mental effort. (12 Dec 1998) |
| chronic fatigue syndrome | <syndrome> An unusual illness, of uncertain cause, that is characterised by unexplained fatigue, weakness, muscle pain, lymph node swelling and malaise. (27 Sep 1997) |
| muscle fatigue | <physiology> A condition resulting from prolonged and strong contraction of a muscle. Studies during prolonged submaximal exercise have shown that muscle fatigue increases in a near direct proportion to the rate of muscle glycogen depletion. Muscle fatigue in short-term maximal exercise is associated with oxygen deprivation and an increased level of blood and muscle lactic acid, and an accompanying increase in hydrogen-ion concentration in the exercised muscle. (12 Dec 1998) |
| fatigue | That state, following a period of mental or bodily activity, characterised by a lessened capacity for work and reduced efficiency of accomplishment, usually accompanied by a feeling of weariness, sleepiness, or irritability. (12 Dec 1998) |
| fatigue fever | An elevation of the body temperature, lasting sometimes several days, following excessive and long continued muscular exertion. (05 Mar 2000) |
| fatigue fracture | Fracture that occurs in bone subject to repeated or unusual subliminal, endogenous stress, most often transverse in configuration. (05 Mar 2000) |
| fatigue strength | The stress level below which a particular component will survive an indefinite number of load cycles (typically about 50% of the ultimate strength of the component). (05 Mar 2000) |
| fatigue syndrome, chronic | Syndrome of unknown cause, characterised by clinically evaluated, unexplained persistent or relapsing chronic fatigue of at least six months' duration which is not the result of ongoing exertion; is not substantially alleviated by rest; and results in substantial reduction of previous levels of occupational, educational, social, or personal activities. Common concurrent symptoms (of six months duration) include impairment of memory or concentration, diffuse pain, sore throat, tender lymph nodes, headaches of a new type, pattern, or severity, and unrefreshing sleep. The aetiology is suspected to be viral or immunologic. There are suggestions that chronic fatigue syndrome (sometimes called myalgic encephalomyelitis) may be identical to neurasthenia and fibromyalgia. (12 Dec 1998) |