Category: O

An angiotensin receptor antagonist that works as an antihypertensive. When joined with a thiazide, it is also a diuretic.  

A synthetic fat that is a sucrose polyester. It has the texture of fat but does not have the energy value of fat. A synthetic fat which was approved by the Food and Drug Administration (FDA) in 1996 for limited use in foods, provided a warning on the label states that it may produce diarrhea…

Mycotoxins produced by Aspergillus ochraceus, Aspergillus spp., and Penicillium viridicatum. They can be categorized as ochratoxin A, B, and C and 4-hydroxyochratoxin A. Ochratoxin A, the most important ochratoxin, is a fairly stable substance that is not easily metabolized. It is a potent hepatotoxin (in rats, ducklings, and Babcock cockerels) and a nephrotoxin (in rats…

Usually refers to the excretion of the products of one-way reactions, for example, the loss of nitrogen in creatinine and the product of the conversion of creatine to creatinine.  

The central zone of a contact lens, corresponding in width to that of the base curve of the lens.  

The central zone of the cornea, whose curvature is measured when the usual ophthalmometer (keratometer) finding is taken.  

An instrument used for measuring the curvature of the front surface of the cornea. An instrument for measuring errors of eye refraction.  

Refraction of the eye referred to the principal point of the eye and (theoretically) corrected by a lens placed at the eye’s principal plane.  

A drug for the treatment of obesity (brand name Xenical) that is not an appetite suppressant, but rather acts by blocking the digestion of about 30 percent of ingested fat calories. A weight-loss aid. Orlistat (Xenical) prevents the digestion of some of the fat consumed in food. When fats are not digested, they cannot be…

Rather than cutting in layers or texturizing the interior, all the hair reaches the same length, providing a strong, solid structure.