Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Medical Prefixes

Common prefixes of many medical terms

uni- one
bi- two
hemi- half
pan- all
poly- many, much
a-, an- none
hyper- excessive, above
hypo- deficient, under
ultra- beyond, excess
in- into, not
ex- out, away from
en-, endo- in, within
ec-, ecto- out, outside
ab- away from
ad- toward
ante- before, forward
post- after, behind
pre- before, in front of
sub- under, beneath
epi- upon, on or above
infra- beneath
supra- above, upper
inter- between
intra- within, into
para- near, beside, abnormal
peri- surrounding
re- back, again
retro- behind, backward
syn-, sym- together, with
per- through
trans- through, across
dia- through, complete
ana- up, apart
cata- down
micro- small
macro-, mega- large
rube- red
cirrh/o yellow
leuk/o white
melan/o black
psuedo- false
meta- change, beyond
eu- good, normal
mal- bad
dys- bad, painful, difficult, abnormal
anti- against
con- with, together
contra- against, opposite
de- down, lack of
brady- slow
tachy- fast
auto- self
par- other than, apart from
neo- new
bi/o life
Created by: fountainhead