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Dictionary of Medical Terms

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

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  • conjunctiva

    The membrane lining the eyelids and covering the eyeball.

  • congenital

    Present at birth.

  • Cone

    The light-sensing structure on the retina of the eye capable of detecting color.

  • duct

    A channel or passage through which fluids move.

  • condom

    A sheath worn over the penis or inside the vagina (female condom) during intercourse to protect against pregnancy and…

  • concussion

    A loss of consciousness because of a head injury.

  • Colorado tick fever

    A viral illness spread by ticks. Characterized by headache, backache and fever that begins to break and then returns midway…

  • ulcerative colitis

    A chronic inflammatory disease of the large intestine characterized by bloody diarrhea.

  • colic

    1. A sudden, spasmodic abdominal pain. 2. In infants, a pattern of excessive crying, apparent abdominal pain and irritability.

  • cold sore

    Herpes simplex infection of the lip.

  • cold

    An upper respiratory infection.

  • cochlea

    The portion of the inner ear that senses sound.

  • cobalamin

    Vitamin B12.

  • clubfoot

    A deformity in which the foot is turned inward from its normal position.

  • clot

    A jelly-like mass of blood.

  • Clostridium

    A genus of bacteria that includes the agents capable of causing food poisoning and tetanus.

  • clitoris

    A small, sensitive erectile organ located in the female at the top of the vulva.

  • cleft lip or palate

    A congenital split of the upper lip or roof of the mouth.

  • clawhand

    A condition of the hand causing distorted fingers resulting from nerve injury.

  • cirrhosis

    Inflammatory disease of the liver characterized by scarring and shrinkage.

  • circumcision

    Surgical removal of the foreskin of the penis.

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