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flatfoot
A condition in which the normal arch of the foot is absent.
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flatulence
Excessive production of gas in the intestines or stomach.
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fluorescein
A compound used as a diagnostic aid to show injuries of the cornea or retina of the eye.
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folic acid
Folacin. One of the B-group vitamins essential for forming red blood cells.
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folliculitis
Inflammation of the hair follicles.
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fontanelle
A soft spot in the skull of an infant formed by the normal separation between the bony plates of the…
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foreskin
A loose fold of skin covering the tip of the penis.
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fracture
Broken, especially a broken bone.
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fraternal twins
Twins formed from two separate eggs that were fertilized at the same time. They may be the same or different…
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frenulum
A fold of skin or mucous membrane that limits the movement of a body part. For example, the frenulum linguae…
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frigidity
An inability to be sexually aroused.
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fructose
Fruit sugar.
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fungus
A group of organisms that includes yeasts, molds and mushrooms.
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galactorrhea
Excessive production of breast milk.
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galactosemia
A disease present at birth caused by a genetic lack of an enzyme needed to metabolize galactose into glucose. May…
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gall
The bile produced in the liver and stored in the gallbladder.
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gallbladder
The storage sac for bile, located below the liver.
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gallstone
A stone-like mass that forms in the gallbladder.
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gamma globulin
Blood protein that contains most antibodies. Used in the temporary prevention of hepatitis and as treatment for disorders with antibody…
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ganglion cyst
A benign, knot-like, cystic tumor on a tendon sheath.
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gangrene
The decay of body tissue in a part of the body where the blood supply is obstructed by injury or…