a-, an- 

ab-

away from - abnormal, departing from normal

acou-

-able

able to, capable of  - viable, ability to live or exist

ad-

to or toward - adorbital, toward the orbit 

aero-

air - aerobic respiration, oxygen-requiring metabolism

alb-

white - corpus albicans of the ovary, a white scar tissue

-algia

pain in a certain part - neuralgia, pain along a nerve

amphi-

both sides; of both kinds - amphibian, an organism capable of lining in water and on land

angi/o- 

vessel - angiitis, inflammation of a lymph vessel or blood vessel

ant-, anti- 

opposed to; preventing - anticoagulant, a substance that prevents blood coagulation

arbor

areola-

open space - areolar connective tissue, a loose connective tissue

arthr/o-

joint – arthritis, inflammation oh a joint

aut-, auto- 

self - autogenous, self-generated

bi- 

two - bicuspid, having two cusps

bio-

life - biology, the study of living organisms

brachi- 

arm - brachial plexus of peripheral nervous system supplies the arm

brady-

bucco-

 cheek - buccolabial, pertaining to the cheek and lip

capill-

hairlike - blood and lymph capillaries

carcin- 

cardi-, cardio-  

heart-  cardiotoxic, harmful to the heart

cec-

-centesis 

to puncture – amniocentesis, to puncture the amniotic sac

cephal- 

cerebro-

brain - pertaining to the brain and spinal cord

cervic-, cervix 

 neck - cervix of the uterus

chiasm-

crossing - optic chiasma, where optic nerves cross

chondr/o- 

chrom-

colored - chromosome, so named because they stain darkly

-cide

destroy or kill - germicide, an agent that kills germs

 cili- 

small hair - ciliated epithelium

 circum- 

around - circumnuclear, surrounding the nucleus

co-, con

together - concentric, together in the center

coccy- 

cuckoo - coccyx, which is beak shaped

cochlea

coel-

hollow - coelom, the ventral body cavity

contra-

against - contraceptive, agent preventing conception

corn-, cornu- 

corp-

body - corpse, corpus luteum, hormone-secreting body in the ovary

cost-

rib - intercostals, between the ribs

crani-

skull - craniotomy, a skull operation

cyan-

blue - cyanosis, blue color of the skin due to lack of oxygen

cyst/o-

sac, bladder - cystitis, inflammation of the urinary bladder 

cyt/o- 

cell - cytology, the study of cells

de- 

undoing, reversal -  deactivation, becoming inactive

 den-, dent-  

tooth - dentin of the tooth

derm, dermat/o- 

skin - dermis, deep layer of the skin

di- 

dialys- 

separate - kidney dialysis, in which waste products are separated & removed from the blood

dura

hard, tough - dura mater, tough outer meninx

dys-

difficult, faulty -  dyspepsia, disturbed digestion

ec-, ex-, ecto- 

 out, outside, away from - excrete, to remove materials from the body

-ectomy  

cutting out, surgical removal - appendectomy, cutting out of the appendix

en-, em- 

in, inside - encysted, enclosed in a cyst or capsule

endo- 

within, inner - endocytosis, taking particles into a cell

enter/o- 

epi- 

over, above - epidermis, outer layer of skin

erythr- 

red - erythema, redness of the skin; erythrocyte, red blood cell

eu- 

well - euesthesia, a normal state of the senses

excret-

separate - excretory system

exo- 

outside, outer layer - exophthalmos, an abnormal protrusion of the eye from the orbit

extra- 

outside, beyond - extracellular, outside the body cells of an organism

extrins- 

from the outside - extrinsic regulation of the heart

 flagell-

whip - flagellum, the tail of a sperm cell

foram- 

opening - foramen magnum of the skull

foss- 

ditch - mandibular fossa of the temporal bone

gangli- 

swelling - dorsal root ganglia of the spinal nerves

gastr/o- 

-gen 

an agent that initiates - pathogen, an agent that produces disease

gene

beginning, origin – biogenesis, the beginnings of life

germin- 

grow - germinal epithelium of the gonads

gero-, geront- 

old - gerontology, the study of aging

 gluco-, glyco- 

glucose - gluconeogenesis, the production of glucose from noncarbohydrate molecules

-gram 

data, a record - electrocardiogram, a recording showing the action of the heart

-graph 

hema-, hemato-, hemo- 

hepat/o- 

hetero- 

hiat- 

hist- 

tissue - histology, the study of tissues

hom-, homo- 

humor - 

hyal- 

clear - hyaline cartilage, which has no visible fibers

hydr-, hydro- 

water - dehydration, loss of body water

hyper- 

hypo- 

below - deficient hypodermic, beneath the skin