Category: Or-Os

Having correct vision, producing correct vision, free from optical distortion, or designed to correct distorted vision.

Slang term for an orthopedist.

An orthopedic surgeon, a physician who corrects congenital or functional abnormalities of the bones with surgery, casting, and bracing. Orthopedists also treat injuries to the bones. Sometimes spelled orthopaedist.

The use of devices to move teeth or adjust underlying bone. The ideal age for starting orthodontic treatment is between ages 8 to 14 years while growth is still occurring. An evaluation for orthodontic treatment is recommended by the age of 7. Teeth can be moved by removable appliances or by fixed braces. Crowding of teeth can…

Prefix meaning straight or erect. From the Greek “orthos” that means just that: straight or erect. Examples of terms involving ortho- include orthodontics (straightening the teeth), orthopaedics (straightening the child), orthopnea (breathing easily only in an upright position), orthostatic (an upright posture), etc.

A disease that has not been adopted by the pharmaceutical industry because it provides little financial incentive for the private sector to make and market new medications to treat or prevent it. An orphan disease may be a rare disease (according to US criteria, a disease that affects fewer than 200,000 people) or a common disease that…

A rare metabolic disorder, OTC is one of the urea-cycle disorders. The urea cycle is a series of five liver enzymes that help rid the body of ammonia, a toxic breakdown product of protein. When one of these enzymes is missing or deficient, ammonia accumulates in the blood and travels to the brain, causing coma, brain damage and death.…

Traditional Chinese medicine (TCM), or Chinese medicine, is an ancient medical system that takes a deep understanding of the laws and patterns of nature and applies them to the human body. TCM encompasses many different practices and is rooted in the ancient philosophy of Taoism which dates back more than 5,000 years. One important way…

A series of muscle contractions in the genital region that is accompanied by sudden release of endorphins. Orgasm normally accompanies male ejaculation as a result of sexual stimulation, and it also occurs in females as a result of sexual stimulation.

Psychiatric or neurological symptoms that arise from damage to or disease in the brain. Also known as organic mental disorder.