a, an
without; as avitaminosis
ab
away from; as abnormal
ad
near, toward; as adrenal
ana
upward; as anabolism
anti
against; as antibiotic
algia
pain; as neuralgia
ase
enzyme; as amylase
cide
kill; as bactericide
clysis
drenching; as venolcysis
cule
small; as molecule
(+)
significant; uncommon
+
positive, plus, present
++
trace or notable reaction
+++
moderate amount or reaction
++++
large amount or reaction