Cervical intraepithelial neoplasia
Cervical intraepithelial neoplasia: The growth of abnormal precancerous cells on the surface of the cervix. Grades from one to three (least to most) may be used to describe the degree of involvement.
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Ten to 20 years after infection, people may develop the most serious symptoms of Chagas disease. Cardiac problems, including an enlarged heart, altered heart rate or rhythm, heart failure, or cardiac arrest are symptoms of chronic disease. Chagas disease can also lead to enlargement of parts of the digestive tract, which result in severe constipation […]
- Chain-termination codon
Chain-termination codon: A set of three adjacent bases in the DNA or their complementary bases in messenger RNA that specifies the end of a polypeptide chain. The three chain-termination codons (in messenger RNA) are UAA, UAG, and UGA. They are also called termination codons, stop codons, or nonsense codons. U = uracil; A = adenine; […]
- Chalazion
A cyst of the little glands in the eyelids that make a lubricant which they discharge through tiny openings in the edges of the lids. The lubricant is a fatty substance called sebum characteristic of sebaceous glands. These glands are called the meibomian glands. Inflammation of them is termed meibomianitis or, alternatively, meibomitis. Chronic inflammation […]
- Chamber, anterior
Chamber, anterior: The space in the eye that is behind the cornea and in front of the iris. The cornea is the outer, transparent, dome-like structure that covers the iris, pupil, and the anterior chamber. The iris is the colored ring of tissue suspended behind the cornea and immediately in front of the lens; it […]
- Chamber, posterior
Chamber, posterior: The space in the eye behind the iris and in front of the lens. The iris is the colored ring of tissue that regulates the amount of light entering the eye by adjusting the size of the pupil. The lens is the transparent biconvex body in the eye that refracts light. (By “biconvex” […]