| Moore's lightning streaks | Photopsia manifested by vertical flashes of light, seen usually on the temporal side of the affected eye, caused by the involutional shrinkage of vitreous humor. (05 Mar 2000) |
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| lightning | 1. A discharge of atmospheric electricity, accompanied by a vivid flash of light, commonly from one cloud to another, sometimes from a cloud to the earth. The sound produced by the electricity in passing rapidly through the atmosphere constitutes thunder. 2. The act of making bright, or the state of being made bright; enlightenment; brightening, as of the mental powers. Ball lightning, a rare form of lightning sometimes seen as a globe of fire moving from the clouds to the earth. Chain lightning, lightning in angular, zigzag, or forked flashes. Heat lightning, more or less vivid and extensive flashes of electric light, without thunder, seen near the horizon, especially. at the close of a hot day. Lightning arrester, a luminous beetle. See Firefly. Lightning conductor, a lightning rod. Lightning glance, a quick, penetrating glance of a brilliant eye. Lightning rod, a metallic rod set up on a building, or on the mast of a vessel, and connected with the earth or water below, for the purpose of protecting the building or vessel from lightning. Sheet lightning, a diffused glow of electric light flashing out from the clouds, and illumining their outlines. The appearance is sometimes due to the reflection of light from distant flashes of lightning by the nearer clouds. Origin: For lightening, fr. Lighten to flash. Source: Websters Dictionary (01 Mar 1998) |
| lightning injuries | Accidental injuries caused by brief high-voltage electrical discharges during thunderstorms. Cardiopulmonary arrest, coma and other neurologic symptoms, myocardial necrosis, and dermal burns are common. Prompt treatment of the acute sequelae, including cardiopulmonary resuscitation, is indicated for survival. (12 Dec 1998) |
| lightning strip | A strip of metal with abrasive on one side, used to open rough or improper contacts of proximal restorations. (05 Mar 2000) |
| pains, growing | Mysterious pains in growing children, usually in the legs. These pains are similar to what the weekend gardener suffers from on monday an overuse type of problem. If in playing, children exceed their regular threshold, they will be sore, just like an adult. Growing pains are typically somewhat diffuse (vs. Focal) and are not associated with physical changes of the area (such as swelling, redness, etc.). The pains are usually relieved by massage, tylenol (acetaminophen), or rest. If the pains persist past a week or there are physical changes, the child should be seen by a physician. (12 Dec 1998) |
| menstrual pains | Lower abdominal and pelvic pain that is associated with menses. Recurrent monthly menstrual pains (not explained by other causes) are often referred to as primary dysmenorrhoea. (27 Sep 1997) |
| growing pains | Mysterious pains in growing children, usually in the legs. These pains are similar to what the weekend gardener suffers from on monday an overuse type of problem. If in playing, children exceed their regular threshold, they will be sore, just like an adult. Growing pains are typically somewhat diffuse (vs. Focal) and are not associated with physical changes of the area (such as swelling, redness, etc.). The pains are usually easily relieved by massage, tylenol (acetaminophen), or rest. If the pains persist past a week or there are physical changes, the child should be seen by a physician. (12 Dec 1998) |
| expulsive pains | Effective labour pain's, associated with contraction of the uterine muscle. (05 Mar 2000) |
| labour pains | <obstetrics> Rhythmical uterine contractions which under normal conditions increase in intensity, frequency, and duration, culminating in vaginal delivery of the infant. Synonym: parodynia. (05 Mar 2000) |
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