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Medical Abbreviations

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List of prefixes (beginnings of the word) which can help you to understand complex medical terms. You can search this page using Ctrl + F

A - B - C - D - G - H - I - M - N - O - P - R


  • abdomino—to do with the abdomen
  • arthro—to do with the joints
  • audio—to do with the ears
  • brachio—to do with the arms
  • carcino—to do with cancer
  • cardio—to do with the heart
  • cerebro—to do with the brain
  • coronary—to do with the heart
  • cranio—to do with the skull
  • dermo—to do with the skin
  • gastro—to do with the stomach
  • haemo—to do with the blood
  • hepato—to do with the liver
  • histo—to do with the tissues
  • immuno—to do with the immune system
  • myo—to do with the muscles
  • nephro—to do with the kidneys
  • neuro—to do with the nervous system
  • opthalmo—to do with the eyes
  • ortho—to do with bones
  • osteo—to do with bones
  • phlebo—to do with the veins
  • radio—to do with scans and X-rays
  • renal—to do with the kidneys

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Other beginnings (prefixes) can also give a clue as to the meaning of the word

  • a—no/ nothing
  • anti—prevents
  • brady—slow
  • dys—difficulty/ inability
  • extra—outside
  • hemi—one side
  • hyper—high or fast
  • hypo—low or slow
  • sub—below
  • tachy—fast

Some words are used to indicate an area/ position of the body, vessel, organ or tissue

  • anterior—front
  • posterior—back
  • inferior—bottom/ below
  • superior—top/ above

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© Chest, Heart & Stroke Scotland 2008 | Page last updated on Wednesday 25th June, 2008