Distention: The state of being distended, enlarged, swollen from internal pressure.
For example, on inhalation there is distention of the lungs due to the increased air pressure within the lungs.
The word “distention” comes from a Latin root “tendere,” to extend. The word “tendon” comes from the same root.
Distichiasis: Double rows of eyelashes. The extra eyelashes grow from the Meibomian glands and may protrude into the cornea, producing severe corneal abrasions.
Diuresis: The increased formation of urine by the kidney. See diuretic for more detail.
Diuretic: Something that promotes the formation of urine by the kidney. All diuretics cause a person to ‘lose water,’ but they do so by diverse means, including inhibiting the kidney’s ability to reabsorb sodium, thus enhancing the loss of sodium and consequently water in the urine (loop diuretic); enhancing the excretion of both sodium and […]
Diurnal: Occurring in the daytime. A patient may have a diurnal fever rather than a nocturnal one. Diurnal also refers to something that recurs every day.
Diverticulitis: Inflammation of the diverticula (small outpouchings) along the wall of the colon, the large intestine. (One outpouching is a diverticulum; two or more are diverticula). For diverticulitis to occur, there must be diverticulosis, the presence of diverticula. Diverticulosis can occur anywhere in the colon but it is most typical in the sigmoid colon, the […]