| Clean Air Act |
A federal law, enacted in 1956 and amended many times since then, that empowers the administration to protect the public health and welfare by defining and attempting to control atmospheric pollutants, including automotive and fact
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| Clean Water Act |
An act originally passed by the federal government in 1972, and since amended several times, that gives the Environmental Protection Agency (EPA) responsibility for developing criteria for water-quality standards and controlling
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| clean-catch method |
A procedure for obtaining a urine specimen that exposes the culture sample to minimal contamination. For females, the labia are held apart and the periurethral area is cleaned with a mild soap or antibacterial solution, rinsed
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| cleaning, ultrasonic |
The use of high-frequency vibrations to clean instruments.
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| cleansing douche |
An external or perineal douche for cleansing genitalia following defecation or after operations such as hemorrhoidectomy, curettage, rectal surgery, circumcision, or perineorrhaphy. A mild antiseptic or disinfectant solution, 98
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