Category: Na-Ne
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Neoplastic
Pertaining to a tumor or the process of tumor formation.
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Neoplasm
A tumor.
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Neoplasia
Abnormal new growth of cells.
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Neonate
A newborn baby, specifically a baby in the first 4 weeks after birth. After a month, a baby is no longer considered a neonate.
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Neonatal
Pertaining to the newborn period, specifically the first 4 weeks after birth.
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Neo- (prefix)
Prefix meaning new. From the Greek “neos”, new, young, fresh, recent. Examples of terms starting with “neo-” include neonatal and neonate (the newborn), neoplasia and neoplasm (new growth = tumor), etc. The opposite of neo- is paleo-. Although paleo- does enter occasionally into medical usage, it is far less commonly encountered than neo- in medicine (and on the pharmacy shelves where there is…
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Negative-strand RNA virus
Also known as an antisense-strand RNA virus, a virus whose genetic information consists of a single strand of RNA that is the negative or antisense strand which does not encode mRNA (messenger RNA). Examples of negative-strand RNA viruses include influenza virus, measles viruses, and rabies virus. There are two types of RNA viruses. Some are positive in that they have a “sense”…
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Negative calorie diet
The Negative calorie diet is a weight loss concept based upon the premise that consumption of foods with a “negative caloric effect” (meaning that the calories burned by chewing, digesting, and eliminating the food are greater than those contained in the food itself) will lead to rapid weight loss of up to two pounds per day. Even…
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Needlestick injury
A penetrating stab wound from a needle (or other sharp object) that may result in exposure to blood or other body fluids. The main concern is exposure to the blood or other body fluids of another person who may be carrying infectious disease. The pathogens of primary concern are the human immunodeficiency virus (HIV), hepatitis B virus (HBV)…
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Necrotizing pneumonia
This is a rare complication of bacterial pneumonia (lung infection by bacteria) in which tissue death (necrosis) begins to occur in the lung. Necrosis is the word for cellular or tissue death due to lack of oxygen. In necrotizing pneumonia, there is a reduction in the vascular supply to the lungs, leading to areas of cellular death. The lack of blood supply due to damaged…