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MEDOP 230- Medical Language: Prefixes

PrefixMeaningExample and Definition
epi- above; upon epidermal (pertaining to upon the skin)
inter- between intercostal (pertaining to between the ribs)
intra- within intravenous (pertaining to within a vein)
peri- around pericardial (pertaining to around the heart)
post- after; behind) postnasal (pertaining to behind the nose
pre- before; in front of prenatal (pertaining to before birth)
sub- below or under; less than subcutaneous (pertaining to under the skin)
trans- across; through transvaginal (pertaining to through the vagina)
bi- two bilateral (pertaining to two sides)
brady- slow bradycardia (condition of a slow heart)
hemi- one half hemiplegia (condition of one half of the body with paralysis)
hyper- above; more than normal hypertension (condition of more than normal pressure)
hypo- below; deficient hypothyroidism (disease from a specific cause of deficient thyroid gland hormone)
poly- many; much polyneuritis (inflammation of many nerves)
quadri- four quadriplegia (condition of four limbs with paralysis)
tachy- fast tachycardia (condition of a fast heart)
tri- three trigeminal (pertaining to three nerve branches in a group)
an- not; without anesthesia (condition of being without sensation)
anti- against antibiotic (pertaining to a drug that is against living organisms [such as bacteria]
dys- abnormal; difficult; painful dysphagia (condition of difficult or painful eating and swallowing)
re- again and again; backward; unable to respiration (process of breathing again and again)
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