Fatal, deadly, lethal, mortal apply to something that has caused or is capable of causing death. Fatal may refer to either the future or the past; in either case, it emphasizes inevitability and the inescapableâthe disastrous, whether death or dire misfortune: The accident was fatal. Such a mistake would be fatal. Deadly looks to the future, and suggests that which is likely to cause death (though not inevitably so): a deadly poison, disease. Like deadly, lethal looks to the future but, like many other words of Latin origin, suggests a more technical usage: a lethal dose; a gas that is lethal.
Making the world better, one answer at a time. Causes of extrasystole include alcohol, ischemia, hypoxia, and myocarditis. Extrasystole is defined as a premature beat in the heart that causes momentary arrhythmia. Causes of extrasystole include alcohol, ischemia, hypoxia, and myocarditis. Extrasystole is defined as a premature beat in the heart that causes momentary arrhythmia.
Eye floaters and flashes are caused by changes in the vitreous gel that occur as we get older. Eye floaters occur when the vitreous gel thickens or shrinks due to aging, causing particles to form in the gel. These particles block the light passing through your eye, casting shadows on the retina. The shadows are seen as floaters, which can be created by: The formation of protein clumps in the vitreous gel. These types of eye floaters tend to look like squiggles, cobwebs, tadpoles, or circles.