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MEDICAL PREFIXES AND SUFFIXES

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Word Use
Medical Term
ab (away from)Prefix   abduction (away from, rotate)  
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ad (toward)Prefix   adduction (toward, rotate)  
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algia (pain)mostly suffix   neuralgia (nerve pain)  
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ante (before, wallpart)suffix or prefix   antepartum (before birth)  
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anti (against)Prefix   antibacterial (against bacteria)  
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bi (two, double)Prefix   bilateral (two sides)  
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brady (slow)Prefix or suffix   bradycardia (slow heart beat)  
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circum (around)Prefix   circumrenal (around the kidney)  
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co, con (together)Prefix or suffix   concentric (together center, same center)  
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de (down or away from)Prefix or suffix   dehydrate (away from hydration)  
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desis (binding fixation of)(Prefix or suffix but mostly suffix)   arthrodesis (surgical fixation of a joint)  
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dia (through)(Prefix or suffix)   diaplacental (through the placenta)  
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dys (difficult, abnormal)(Prefix)   dysemia (abnormal blood)  
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ecto (outside)(Prefix)   ectocornea (outer layer of cornea)  
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ectomy (excision)(Prefix or suffix but mostly suffix)   tonsillectomy (tonsill removal)  
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endo (within)(Prefix)   endogastric (within the stomach)  
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epi (outer, on top of, over)(Prefix)   epigastric (top of stomach)  
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exo (away from)(Prefix)   exophthalmus (eyes bulging away from)  
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extra (outside, beyond)(Prefix or suffix)   extra sensory (beyond senses)  
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iasis (condition of)(suffix)   cholelithiasis (condition of gall bladder stones)  
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iatric (medicine)(suffix)   pediatric (child medicine) Psychiatric (mind medicine)  
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ic (pertaining to)(suffix)   entric (pertaining to the small intestine)  
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inter (between)(prefix)   intercostal (between ribs)  
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intra (within)(prefix)   intra-aortic (within the aorta)  
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isis, asis (condition of)(suffix)   metastasis (condition of change in location or spreading)  
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itis (inflammation of)(suffix)   gastritis (stomach inflammation)gingivitis (inflammation of gums)  
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juxta (near)(prefix)   juxtaepiphysial (near epiphysis or part of long bone)  
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kinesis (movement)(suffix)   metakinesis (moving apart) kinesiology (study of movement)  
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kypho (humped)(prefix)   kyphosis (condition of being hump backed) kyphoscoliosis (a humped curvature of spine)  
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logia, logy (science of)(suffix)   cardiology (heart science or study of heart)  
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lysis (disintegration)(suffix)   osteolysis (bone breakdown)  
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macro (large, long)(prefix)   macrostomia (large mouth)  
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malacia (softening)(prefix or suffix)   chondromalacia (soft cartilage)  
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med,medi,medio (middle)(prefix or suffix)   mediocarpal (middle of the carpal bone)  
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mega, megaly (enlargement)(prefix or suffix)   cardiomegaly (large heart)  
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micro (small)(mostly prefix)   microcephalic (small brain)  
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mono (single,one)(prefix)   mononecleosis (condition of the large outbreak of one nucleous lymphocytes)  
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multi (many)(prefix)   multifocal (many locations)  
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neo (new)(prefix)   neonatal (new born)  
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ob (against)(prefix)   obtunded (against or mentally dull)  
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oid (like, shape, resemble)(suffix)   mucoid (mucus like)  
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oligo (few)(prefix or suffix)   oliguria (diminished urination)  
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ology (study of)(suffix)   neurology (study of nerves)  
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oma (tumor)(suffix)   lymphoma (lymph tumor)  
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osis (condition)(suffix)   pediculosis (condition of lice infestation)  
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otomy (incision)(suffix)   craniotomy (skull incision)  
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a, an (without)(Prefix)   anencephalic (without a brain)  
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