Medical Terminology Prefixes
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Updated
2009-11-15 18:01
Numbers
| Prefix | Meaning |
| bi- | two, double |
| hemi- | half |
| milli- | one thousandth |
| mono- | one, single |
| nulli- | none |
| primi- | first |
| quadri- | four |
| semi- | half |
| tetra- | four |
| tri- | three |
| uni- | one |
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Measurement
| Prefix | Meaning |
| hyper- | excessive |
| hyp- | under, below, beneath, less than normal |
| hypo- | under, below, beneath, less than normal |
| multi- | many |
| poly- | many, much |
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Position or Direction
| Prefix | Meaning |
| ab- | from, away from |
| ad- | toward, increase |
| ambi- | both, both sides |
| ante- | before, in front |
| circum- | around |
| de- | down from |
| dia- | through |
| ecto- | outside |
| endo- | within |
| epi- | upon, over |
| ex- | out, away from, outside |
| extra- | outside, beyond |
| hypo- | under, below, beneath, less than normal |
| in- | in, inside, within,not |
| infra- | beneath, below, under |
| inter- | between |
| intra- | within |
| juxta- | near, beside |
| meso- | middle |
| para- | near, beside, beyond, two like parts |
| peri- | around |
| pre- | before, in front |
| pro- | in front, before |
| retro- | backward, behind |
| sub- | under, below |
| supra- | above, over |
| trans- | across, through |
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Color
| Prefix | Meaning |
| alb- | white |
| albin/o | white |
| chlor/o | green |
| cirrh/o | yellow, tawny |
| cyan/o | blue |
| eosin/o | red, rosy |
| erythr/o | red |
| glauc/o | gray, silver |
| jaund/o | yellow |
| leuk/o | white |
| melan/o | black |
| poli/o | gray |
| purpur/o | purple |
| rube- | red |
| xanth/o | yellow |
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Negatives
| Prefix | Meaning |
| a- | without, not, no |
| an- | without, not |
| ana- | not, without |
| anti- | against |
| contra- | against |
| dis- | free of, to undo |
| im- | not |
| in- | in, inside, within, not |
| non- | not |
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