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Common Terminology

Common Prefixes

a- without, lack of
ab- away from
abdomi(n)- abdomen
acr(o)- pertaining to an extremity
ad- to, toward
aden(o)- pertaining to a gland
an- without, lack of
ana- up, back, again
angio- vessel
ante- before, forward
anti- against, opposed to
anteri(o)- artery
arthro- pertaining to a joint
auto- self
bi- two
bi(o)- pertaining to life
blast(o)- germ or cell
blephar(o)- pertaining to an eyelid
brady- slow
calc- stone; also heel
cardi(o)- pertaining to the heart
cephal(o)- pertaining to the head
cerebr(o)- pertaining to the cerebrum, a part of the brain
cervic(o)- pertaining to the neck or the uterine opening (cervix)
chole- pertaining to bile
chondr(o)- pertaining to cartilage
circum- around, about
contra- against, opposite
cost(o)- pertaining to a rib
cyan(o)- blue
cyst(o)- pertaining to the bladder or any fluid-containing sac
cyt(o)- pertaining to a cell
dermat(o)- pertaining to the skin
di- twice, double
dia- through, completely
dys- difficult, painful, abnormal
ect(o)- out from
electro- pertaining to electricity
end(o)- within
enter(o)- pertaining to the intestines
epi- upon, on
erythr(o)- pertaining to red or to erythrocytes (red blood cells)
eu- easy, good, normal
ex(o)- outside
extra- outside, in addition
gastr(o)- pertaining to the stomach
glyc(o)- sugar
gynec(o)- pertaining to females or the female reproductive organs
hemat(o)- pertaining to blood
hemi- half
hem(o)- pertaining to blood
hepat(o)- pertaining to the liver
hydr(o)- water
hyper- over, excessive
hypo- under, deficient
hyster(o)- pertaining to the uterus
infra- below
inter- between
intra- within
iso- equal
latero- side
leuk(o)- pertaining to anything white or to leukocytes (white blood cells)
lith(o)- pertaining to a stone
macro- large
mal- bad or abnormal
mening(o)- pertaining to a membrane, particularly the meninges
micro- small
mono- one
myel(o)- pertaining to the spiral cord, the bone marrow, or myelin
my(o)- pertaining to muscle
nas(o)- pertaining to the nose
ne(o)- new
nephr(o)- pertaining to the kidney
neur(o)- pertaining to a nerve or the nervous system
noct- night
olig(o)- little, deficient, or minimal
oophor(o)- pertaining to the ovary
ophthalm(o)- pertaining to the eye
orchid(o)- pertaining to the testicles
orchi(o)- pertaining to the testicles
ortho- straight or normal
oste(o)- pertaining to bone
ot(o)- pertaining to the ear
para- by the side of
path(o)- pertaining to disease
per- through
peri- around
phag(o)- pertaining to eating, ingesting, or engulfing
pharyng(o)- pertaining to the throat or pharynx
phleb(o)- pertaining to a vein
pneum(o)- pertaining to respiration, the lungs, or air
poly- many
post- after, behind
pre- before
pro- before, in front of
proct(o)- pertaining to the rectum
pseud(o)- false
psych(o)- pertaining to the mind
pulm(o)- pertaining to the lung
pyel(o)- pertaining to kidney pelvis
py(o)- pertaining to pus
quadr(i)- four
retr(o)- backward or behind
rhin(o)- pertaining to the nose
salping(o)- pertaining to a tube
scler(o)- hard; also means pertaining to the sclera
semi- half or partial
sub- under, moderately
super- high, excessive, or more than normal
supra- above
tachy- fast
thorac(o)- pertaining to the chest
trans- across
tri- three
uni- one
vas(o)- vessel
Created by: whitefire70