Category: Or-Os

Having to do with bone, consisting of bone, or resembling bone.

In biochemistry, the amount of a substance that dissociates in solution to form one mole of osmotically active particles.

The concentration of osmotically active particles in solution, which may be quantitatively expressed in osmoles of solute per liter of solution.

In biochemistry, referring to the osmolarity, the concentration of osmotically active particles in solution, which may be quantitatively expressed in osmoles of solute per liter of solution.

The Occupational Safety and Health Administration, an agency of the US government under the Department of Labor with the responsibility of ensuring safety at work and a healthful work environment. OSHA’s mission is to prevent work-related injuries, illnesses and deaths. Since OSHA was created in 1971, occupational deaths in the US have declined by half and…

The act of yawning, the involuntary opening of the mouth with respiration, breathing first inward, then outward. Yawning is often caused by suggestion. Repeated yawning is commonly a sign of drowsiness. It can also sometimes be a sign of depression.

Abbreviation of “oculus sinister.” Latin for “left eye.” By contrast, OD stands for “oculus dexter” which is Latin for the right eye.

The left eye (oculus sinister), as opposed to the right eye (oculus dexter).

A support, brace, or splint used to support, align, prevent, or correct the function of movable parts of the body. Shoe inserts are orthotics that are intended to correct an abnormal or irregular walking pattern, by altering slightly the angles at which the foot strikes a walking or running surface. Other orthotics include neck braces,…

A temporary lowering of blood pressure, usually related to suddenly standing up. Healthy people may experience orthostatic hypotension if they rise quickly from a seated position, especially after a meal. Orthostatic hypotension occurs most commonly in older people. The change in position causes a temporary reduction in blood flow and therefore a shortage of oxygen to the brain. This…