The National Weather Service defines a blizzard as any severe snowstorm that is accompanied by strong winds â at least 35 mph â resulting in low visibility. The defining factor of a blizzard is actually the strength of the wind, rather than the amount of snow. To qualify as a blizzard, the combination of wind and snow must reduce visibility to a quarter mile or less and last for at least three hours. Severe blizzards can reduce visibility to zero, making it difficult to see buildings or trees just a few yards away.
Mutatis mutandis is a Medieval Latin phrase meaning the necessary changes having been made or once the necessary changes have been made.utatis mutandis was first borrowed into English in the 16th century, but continues to be italicized as a foreign phrase. Although many similar adverbial phrases are treated as part of the sentence, mutatis mutandis is usually set apart by commas or in some other fashion.
Tetany: A condition that is due usually to low blood calcium (hypocalcemia) and is characterized by spasms of the hands and feet, cramps, spasm of the voice box (larynx), and overactive neurological reflexes. Tetany is generally considered to result from very low calcium levels in the blood. However, tetany can also result from reduction in the ionized fraction of plasma calcium without marked hypocalcemia, as is the case in severe alkalosis (when the blood is highly alkaline). Last Editorial Review: 5/13/2016.