• INTRODUCTION TO MEDICAL TERMINOLOGY:
    COMMONLY USED PREFIXES
    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