Crabs: Slang for pubic lice, parasitic insects that can infest in the genital area of humans. Pubic lice are usually spread through sexual contact. Rarely, infestation can be spread through contact with an infested person’s bed linens, towels, or clothes. The key symptom of pubic lice is itching in the genital area. Lice eggs (nits) or crawling lice can be seen with the naked eye.
CRAC1: Colorectal adenoma and carcinoma 1. Also called hereditary mixed polyposis syndrome. See: Hereditary mixed polyposis syndrome.
- Crack (drug)
The street name given to cocaine that has been processed from cocaine hydrochloride to a ready-to-use free base for smoking. Rather than requiring the more volatile method of processing cocaine using ether, crack cocaine is processed with ammonia or sodium bicarbonate (baking soda) and water and heated to remove the hydrochloride, thus producing a form […]
- Cracked tooth syndrome
Cracked tooth syndrome: A toothache caused by a broken tooth (tooth fracture) without associated cavity or advanced gum disease. Biting on the area of tooth fracture can cause severe sharp pains. These fractures are usually due to chewing or biting hard objects such as hard candies, pencils, nuts, etc. Cracked tooth syndrome is most common […]
- Cradle cap
Cradle cap: A form of seborrheic dermatitis of the scalp that is usually seen in infants but sometimes found in older children. It is characterized by flaking or scaling of the skin, which may also be reddened.
- Cramp, writer's
Cramp, writer’s: A dystonia that affects the muscles of the hand and sometimes the forearm and that only occurs during handwriting. Similar focal dystonias have been called typist’s cramp, pianist’s cramp, musician’s cramp, and golfer’s cramp.