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Prefixes and Suffixes

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Prefixes + Suffixes
Meaning
Example + Definition
anti   against   Antibiotic= drugs that act against bacteria  
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brachy   short   Brachycephalic= short head  
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brady   slow   Bradycardia= excessively slow heart rate  
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cata-   down, under, lower   Catabolism= breaking down  
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contra   opposed, against   Contraindicated= something that is not indicated  
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crypto   hidden   Cryptorchidism=  
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de-   remove, take away, loss of   Dehydrated= excessive loss of body water  
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dis-   apart from, free from   Disinfection= to free from infection  
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dolicho   long   Dolichocephalic= long head  
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e-, ec-, ex-   out of, from, away from   Ectopic= out of place  
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glyco, gluco   sugar, sweet   Hyperglycemia= a condition of excessive sugar in the blood  
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hema-, hemato-, hemo-   blood   Hematuria= blood in the urine  
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eu-   normal, good ,true, healthy   Euthanasia= inducing death painlessly  
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hemi   half   Hemiplegia= paralysis of one side of the body  
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hydro   water, fluid   Hydrocephalus= fluid in the brain  
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hyper   high, excessive   Hyperthermia= body temperature higher than normal  
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hypo   low, insufficient   Hypothyroidism= deficiency of thyroid activity  
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marco-   large   Macrocyte= large cell  
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mal-   bad, poor   Malocclusion= poor fit of upper and lower teeth when jaw closes  
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mega-, megalo   large, oversized   Megacolon= abnormally enlarged colon  
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micro   small   Microphthalmos= abnormally small eye  
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necro   death   Necropsy= examination of dead animal  
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neo   new   Neoplastic= new tissue growth  
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oligo-   few, little   Oliguria= scant urine production  
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pan-   all, entire   Panzootic= throughout an animal population  
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poly-   many, much   Polyphagia= excessive eating  
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pseudo   false   Pseudocyesis= false pregnacy  
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pyo   pus   Pyometra= pus in the uterus  
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tachy   fast, rapid   Tachycardia= excessively rapid heart rate  
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ure-, urea-, ureo-, urin-, urino, uro   urine, urea   Glucosuria= sugar in the urine Uremia= urea in the blood  
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a-, an-   without or not having   Anemia= not having enough red blood cells  
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-emesis   vomit   Hematemesis= vomiting blood  
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-emia   blood condition   Anemia= lack of blood  
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-esis   infestation or infection with   Paresis= partial paralysis  
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-iasis, -asis   a condition characterized by   Lithlasis= condition characterized by formation of calculi  
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-genesis   development, origin   Carcinogenesis= development of cancer  
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-ism   a state or condition, a fact of being, result of a process   Hypercortisonism= condition resulting for excessive cortisone  
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-itis   inflammation of   Tonsillitis= inflammation of tonsils  
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-megaly   enlarged   Hepatomegaly= enlarged liver  
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-oma   tumor   Leiomyoma= tumor of smooth muscles  
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-osis   abnormal condition or process of degeneration   Nephrosis= degenerative disease of the kidneys  
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-path, -pathy   disease   Pathogenic= disease causing  
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-penia   deficiency or lack of   Leukopenia= deficiency of white blood cells  
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-phage, -phagy   eating   Coprophagy= eating fences  
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-phobia   abnormal fear or intolerance of   Photophobia= intolerance of light  
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-plasia,-plastic   forming, changing , growing   Anaplasia= changing structure of cells  
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-pnea   breathing   Dyspnea= difficulty breathing  
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-rrhea   flow or discharge   Diarrhea= discharge of feces  
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-centesis   to puncture, perforate, or tap-permitting withdrawal of substances (e.g., fluid, air)   Abdomincentesis= surgical puncture of the abdomen to remove fluid from peritoneal cavity  
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-ectomy   to exercise or surgically remove   Cholecystectomy= surgical removal of the gallbladder  
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-ize   use, subject to   Anesthetize= subject to anesthesia  
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-pexy   fixation or suturing ( a stabilizing type of repair)   Gastropexy= fixation of the stomach to the body wall  
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-plasty   to shape, the formation of , or plastic surgery (meaning " to improve function, to relieve pain or for cosmetic reason")   Cheiloplasty= plastic repair of the lips (to improve looks and function)  
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-rrhaphy   to surgically repair by joining in a seam or by suturing together   Herniorrhaphy= surgical repair of a hernia  
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-stomy   to make a new , artificial opening in a hollow organ ( to the outside of the body) or to make a new opening between two hollow organs.   Colostomy=surgical creation of a new opening between the colon and the outside of the body. Gastroduodenostomy= to create a new opening between the stomach and the duodenum.  
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-tomy   to incise or cut into (making an incision)   Thyrotomy = an incision of the larynx through the thyroid cartilage  
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-graph   instrument or machine that writes or records   Electrocardiograph= machine that records electrical impulses produced by the beating heart  
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-graphy   procedure of using an instrument or machine to record   Electrocardiography= procedure of using an electrocardiograph to produce an electrocardiogram  
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-gram   product, written record, "picture", or graph produced   Electrocardiogram= ECG, EKG, graphic tracing of electrical currents flowing through the beating heart  
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-meter   instrument or machine that measures or counts   Thermometer= instrument used to measure body temperature  
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-metry, -imetry   procedure of measuring   Dosimetry= act of determining the amount , rate and distribution of ionizing radiation  
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-scope   instrument for examining, viewing or listening   Otoscope= instrument for looking into ears  
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-scopy   act of examining or using the scope   Laparoscopy= procedure of using a laparoscope to view the abdominal cavity  
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-tome   instrument for cutting such as into smaller or thinner sections    
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-algia   pain   Myalgia= muscular pain  
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