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1. A fissure.
Farlex Partner Medical Dictionary © Farlex 2012


Substance abuse A 'free-base' form of cocaine which, when smoked in a pipe, produce a brief, very intense 'high'. See Bingeing, Cocaine, Crack 'smile. ', Free base cocaine.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


1. A fissure.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


A highly purified form of COCAINE which produces an intense reaction of rapid onset. Crack is inherently more dangerous than less concentrated forms and deaths have resulted from its use.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005


A fissure.
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about crack

Q. what causes the sound of cracking noises in the head all the time it was said i had acute sinusitis but honestly i think it is more . I don't know why i have cracking noises in my head . I am very concerned about this also my neck is always stiff feeling and aching all the time. . My eyes are very tired and i see blue spots and they hurt behind the eye very badly . I have headaches very often

A. wow...that really sounds serious...i have chronic sinusitis and i can tell you i had horrible headaches but nothing like you describe now. i would strongly consider going to a hospital and checking it out...
tell us what was the result!

Q. anyone knows how to stop hard skin on the feet from becoming cracked??? during summer my feet got lots of hard skin and in the heel area the skin actually got cracked kinda deep. it hurts now and the cracks are starting to get infected I guess... do u guys know how to solve this?? I know there are some creams for that but I thought maybe now it's too late for that and I need something stronger?

A. There are good creams for moisterizing the skin of your feet on a daily basis, however now that you feel they might be infected you should see a dermatologist for some better treatment.

Q. Im only 17 I have horrble lower back pains. Im constitly rubbing,stretching, or cracking my back. the pain is either a throbbing pain or an ache or sting.I feel it worse when I put my chest out my shoulders back. my back feels like its out of place.

A. Lower back pain is so very common... I have had it for years, and just recently what I found to be very helpful is walking. Even a 30-45 minute walk and then some streching is good. I have hardly had any pain since I started exercising and it feels really good. Swimming is also known to help.

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References in periodicals archive ?
The alleged threats come after a recent crack down in which alleged top mafia boss Krasimir Marinov aka the Big Marguin was arrested and charged in connection with the murder of controversial Bulgarian radio host, Bobi Tsankov and other drug-related offenses.
Now they have a helping hand in what is a legal crack down on illegal practice.
Robert LiMandri, commissioner of the Department of Buildings, said it takes more than city officials to crack down on construction safety.
LTI Vehicles, the Coventry manufacturer of the world famous London Taxi, is calling on local councils to crack down on illegal taxi touts.
The crack down has succeeded in sending the price of tin to peak level lately.
10), "Sheriff's department cracks down on speed racing," tried to point out that the Lane County Sheriff's Office was going to crack down on speeders.
So the logic should be that the authorities should be making an equal, if not greater, effort to crack down on tax evasion.
A NEW scheme to crack down on fisheries crime was launched in North Wales yesterday.
While fears over same-sex marriage have caused lawmakers in Washington to debate amending the Constitution to limit marriage to one man and one woman, few lawmakers have expressed any apparent desire to crack down on polygamy.
SHOPS and pubs will this week be ordered to crack down on underage drinking - or face losing their licences.
A North council has been slated by Government watchdogs over its failure to crack down on benefit cheats.
The new Prescription Shopping Information Service has been exempted from national privacy laws to crack down on patients visiting several doctors to gain access to multiple prescriptions for the same ailment.