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   Relating to both ears.



Biliary sand
Biliary sand is a term mostly used by surgeons when they remove the gallbladder to describe uncountable, small particles in bile that are visible to the naked eye. Biliary sand may be looked upon as a stage in the growth of the particles that comprise sludge (which are microscopic and not visible to the naked eye) and gallstones, which are large enough to be counted easily. The composition of biliary sand varies but is similar to the composition of gallstones. The most common components of biliary sand are cholesterol crystals and calcium salts.

Biliary sludge
A mixture of microscopic particulate matter in bile that occurs when particles of material precipitate from bile. (Bile is the fluid that is made by the liver. It is stored in the gallbladder until after a meal when it passes out of the gallbladder and through the common bile duct into the intestine to help digest fat in the meal.)

The adjective for bile, bilious has three meanings. It means of or relating to bile. By extension, bilious means suffering from liver dysfunction (and especially excessive secretion of bile). And, further by extension, it is indicative of a peevish ill-natured disposition.

"A term used in the 18th and 19th centuries pertaining to bad digestion, stomach pains, constipation, and excessive flatulence (passing gas). The quantity or quality of the bile was thought to be at fault for the condition. Hence, the name ""biliousness."" (""Bilious"" derives from the French ""bilieux,"" which in turn came from ""bilis,"" the Latin term for ""bile."") Biliousness was generally laid to high living. The ""cure"" was moderation and frequent visits to the doctor."

An encapsulated collection of bile within the abdomen. A biloma may form if there is bile duct disruption, as from a laparoscopic cholecystectomy. From bile + -oma (a tumor).


Binge drinking
The dangerous practice of consuming large quantities of alcoholic beverages in a single session. Binge drinking carries a serious risk of harm, including alcohol poisoning.

Binge eating disorder
An eating disorder characterized by periods of extreme over-eating, but not followed by purging behaviors as in most cases of bulimia. Binge eating can occur alone, or in conjunction with a lesion of the hypothalamus gland, Prader-Willi disorder, or other conditions. It can contribute to high blood pressure, weight gain, diabetes, and heart disease. Treatment depends on the patient and the underlying disorder, but may include therapy, dietary education and advice, and medication.

Binocular diplopia
See: Diplopia, binocular.

The ability to focus upon an object with both eyes and create a single stereoscopic image. Binocularity requires highly convergent orbits. The evolutionary increases among primates in the degree of orbital convergence have been noted to correlate with the expansion of visual brain structures and, as a consequence, with the overall size of the brain. It is therefore thought that the evolution of brain size in primates was associated with visual specialization.

Having two nuclei. Binucleate cells are due to a defect in cytokinesis, the process by which two daughter cells separate at the completion of cell division.

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