brady-

slow

endo-

inside, 

within

epi-

upon, over,

on top

hyper-

excessive,

above abnormal

hypo-

under,

below

peri-

around

tachy-

fast

a-

without

an-

without,

not

dys-

difficult, painful,

abnormal

hemi-

half

hyper-

excessive,

above abnormal

in-

not,

inward

inter-

between

intra-

within,

inside

pan-

all,

entire

para-

beside,

abnormal

poly-

many

post-

after

pre-

before

sub-

under, 

below

-crasia

a mixture or

blending

-emia

blood 

condition

-ectomy

surgical

removal

-graphy

process of

recording

-itis

inflammation

-lysis

destruction,

or breakdown

-megaly

enlargment

-osis

abnormal

condition

-penia

deficiency 

-plasty

surgical

repair

-rrhage

bursting forth,

excessive flow

-stasis

stopping,

controlling 

-cytosis

condition of

cells

-algia

pain

-cele 

hernia, 

swelling

-cyte

cell

-ectomy

surgical

removal

-genic

producing, originating,

or causing

-gram

record or

image

-graph

instrument used

to record

-graphy

process of 

recording

-iatrist

specialist in

treatment

-iatry

field of medicine,

treatment

-itis

inflammation

-lepsy

seizure

-logist

specialist in

a field of

study

-malacia

abnormal

softening

-mania

madness or excessive

preoccupation

-oid

resembling or

like

-oma

tumor or

swelling

-pathy

disease

-phobia

fear

-rraphy

suturing or

stitching

-tomy

cutting or

surgical incision

-tropic

having an infinity 

for, influencing

angi/o

vessel

(usually, blood or lymph)

aort/o

aorta

arteri/o

artery

ather/o

fatty 

plaque

capillar/o

capillaries

(the smallest blood vessels)

cardi/o

heart

chrom/o

chromat/o

color

erythr/o

red

hem/o

hemat/o

blood

isch/o

restriction,

deficiency

leuk/o

white

my/o

muscle

phleb/o

vein

scler/o

hardening

sten/o

narrowing

thromb/o

clot

valvul/o

valve

vas/o

vessel

ven/o

vein

alges/o

sensitivity to 

pain

cephal/o

head

cerebr/o

brain,

cerebrum

cerebell/o

cerebellum

(part of the brain)

concuss/o

to shake

violently

crani/o

skull

dur/o

dura mater

(outermost layer of the meninges)

encephal/o

brain

esthesi/o

sensation,

feeling

gangli/o

ganglion/o

ganglion

(cluster of nerve

cell bodies)

hydr/o

water,

fluid

lob/o

lobe

ment/o

mind,

chin

mening/o

meningi/o

meninges

(membranes covering the brain and spinal cord)

mon/o

one,

single

myel/o

spinal cord,

bone marrow

neur/o

neur/i

nerve

phas/o

speech

poli/o 

gray matter

(of the brain or

spinal cord)

pont/o

pons

(a part of

the brainstem)

psych/o

mind

radic/o

radicul/o

rhiz/o

nerve

root

vag/o

vagus nerve

(a cranial nerve)

A-fib

atrial fibrillation 

AED

automated

external

defibrillator

CABG

coronary

artery

bypass

graft

CAD

coronary artery

disease