PREFIX / MEANING a-, an- without, lacking, deficient, not ab- away from ad-, af- toward, to, near ambi-, ampho-, amphi- both, double ana- up, toward, apart andro- man ante- before, in front of, forward anti-, ant- against, opposing, preventing ap-, apo- separation from, derived from aut-, auto- self brachy- short brady- slow cata- down, under, lower, against circum-. around co-, com-, con- with, together contra- against, opposed de- down, from dextro- to the right dia- through, between, apart, across dis- apart, free from dorso- to the back dys- difficult, bad, painful, abnormal e-, ec-, ef-, ex- out of, from, away from ect-, ecto-, exo- outside of em-, en-, eso- in, into, within end-, endo-, ent-, ento- within, inside ep-, epi- upon, on, over eu- normal, good, healthy extra-, extro- outside of, beyond, outward gyn-, gyno- woman, female hemi- half, partial hetero- different, other hyper- excessive, above, beyond hyp-, hypo- under, beneath, deficient im-, in- in, into, within, not infra- below, beneath inter- between intra-, intro- within, into mal- bad, abnormal mega-, megalo- large, big mes-, meso- middle meta- change micr-, micro- small mult-, multi- many neo- new, recent noso- disease oligo- little, few pan- all, entire para- beside, beyond, after per- through, excessive peri- around, surrounding poly- many, much, excessive post- after, behind pre-, pro- before, in front of pseud-, pseudo- false pyo- pus pyro- fire re-, retro- backward, behind, again semi- half steno- narrow sub- under, below, beneath super-, supra- above, excess, superior sym-, syn- together, with tachy- fast telo- end therm- heat trans- across, through, beyond ultra- beyond, excess xero- dry COLORS albus- white chloro- green chromo- color cirrhos- orange yellow cyano- blue erythro- red leuko- white luteus yellow melano- black polio- gray porphyro- purple rhodo- red xantho- yellow NUMBERS nulli- none haplo- single mon-, mono- one bi-, di-, dipl- two, double, twice tri- three quadri-, tetra four penta- five hex-, sex- six octo-, octa- eight nona- nine deci- ten
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