Gain a better understanding of medical terminology by searching our dictionary of more than 1,300 terms.

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All terms that start with the letter F
  • faint

    Temporary loss of consciousness because of an insufficient blood supply to the brain.

  • fallopian tube

    The tubal passageway connecting the ovary to the uterus.

  • familial cholesterolemia

    An inherited disorder causing abnormally high levels of cholesterol in the blood.

  • fascia

    Fibrous sheets of tissue connecting or covering the muscles.

  • fat

    A major energy source for animals and humans. Fat contains nine calories per gram.

  • fatigue

    Physical or mental exhaustion. Weariness.

  • feces

    Body waste expelled from the rectum. Also called bowel movement or stool.

  • femoral

    Having to do with the femur.

  • femur

    The thigh bone.

  • fertility

    The ability to have children.

  • fertilization

    The process of joining the male's sperm and the female's ovum (egg).

  • fetal

    Having to do with the fetus.

  • fetus

    The unborn baby from the end of the eighth week after fertilization of the egg to birth.

  • fever

    Abnormally high body temperature.

  • fiber

    1. A slender, thread-like structure of organ tissue. 2. In the diet, strands of complex carbohydrates (cellulose) that aren't digestible.

  • fibrillation

    A rapid, uncoordinated series of contractions of some part of the heart muscle causing irregular heartbeats. Atrial fibrillation is the rapid, ineffective beating of the upper part of the heart. Ventricular fibrillation is the lethal rapid, ineffective beating of the lower part of the heart.

  • fibrin

    A serum protein that's essential for the clotting process.

  • fibroid

    A noncancerous tumor of the uterus composed of muscle fibers. Also called uterine myoma.

  • fibromyalgia

    A painful condition with multiple sensitive areas, called "tender points," affecting fibrous tissues, muscles, tendons and ligaments.

  • fibrositis

    Inflammation of fibrous tissues.

  • fibula

    The long, thin, outer bone of the lower leg.


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