Foreign Word Roots, Prefixes, Suffixes, and Combining Forms

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a- (avascular)

without

ab- (abduct)

from

-ac (cardiac)

pertaining to

acr- (acromegaly)

extremity

ad- (adduct)

to, toward

aden-, adeno- (adenoid)

gland

adip- (adipocytes)

fat

aer- (aerobic metabolism)

air

af- (afferent)

toward

-al (brachial)

pertaining to

alb- (albino)

white

-algia (neuralgia)

pain

allo- (allograft)

other

ana- (anaphase)

up, back

andro- (androgen)

male

angio- (angiogram)

vessel

ante- (antebrachial)

before

anti-, ant- (antibiotic)

against

apo- (apocrine)

from

arachn- (arachnoid)

spider

arter- (arterial)

artery

arthro- (arthroscopy)

joint

-asis, -asia (homeostasis)

state, condition

astro- (astrocyte)

star

atel- (atelectasis)

imperfect

aur- (auricle)

ear

auto- (autonomic)

self

baro- (baroreceptor)

pressure

bi- (bifurcate)

two

bio- (biology)

life

blast-, -blast (blastocyst)

precursor

brachi- (brachiocephalic)

arm

brachy- (brachydactyly)

short

brady- (bradycardia)

slow

bronch- (bronchial)

windpipe

carcin- (carcinoma)

cancer

cardi-, cardio-, -cardia (cardiac)

heart

-cele (blastocele)

tumor, hernia, or swelling

-centesis (thoracocentesis)

puncture

cephal- (brachiocephalic)

head

cerebr-, cerebro- (cerebrospinal fluid)

brain

cervic- (cervical vertebrae)

neck

chole- (cholecystitis)

bile

-chondrion (mitochondrion)

granule

chondro- (chondrocyte)

cartilage

chrom-, chromo- (chromatin)

color

circum- (circumduction)

around

'clast (osteoclast)

broken

coel-, -coel (coelom)

cavity

colo- (colonoscopy)

colon

contra- (contralateral)

against

corp- (corpuscle)

body

cortic- (corticospinal)

rind or bark

cost- (costal)

rib

cranio- (craniosacral)

skull

cribr- (cribriform)

sieve

-crine (endocrine)

to separate

cut- (cutaneous)

skin

cyan- (cyanosis)

blue

cyst-, -cyst (blastocyst)

sac

cyt- (cytology)

kyton, a hollow cell

de- (deactivation)

from, away

dendr- (dendrite)

tree

dent- (dentition)

teeth

derm- (dermatome)

skin

desmo- (desmosome)

band

di- (disaccharide)

twice

dia- (diameter)

through

digit- (digital)

a finger or toe

dipl- (diploid)

double

dis- (disability)

apart, away from

diure- (diuresis)

to urinate

dys- (dysmenorrhea)

painful

-ectasis (atelectasis)

expansion

ecto- (ectoderm)

outside

-ectomy (appendectomy)

excision

ef- (efferent)

away from

emmetro- (emmetropia)

in proper measure

encephalo- (encephalitis)

brain

end-, endo- (endometrium)

inside

entero- (enteric)

intestine

epi- (epimysium)

on

erythema- (erythematosis)

flushed (skin)

erythro- (erythrocyte)

red

ex- (exocytosis)

out, away from

extra- (extracellular)

outside of, beyond, in addition

ferr- (transferrin)

iron

fil- (filament)

thread

-form (fusiform)

shape

gastr- (gastrointestinal)

stomach

-gen, -genic (mutagen)

to produce

genicula- (geniculates)

kneelike structure

genio- (geniohyoid)

chin

gest- (gestation)

to bear

glosso-, -glossus (hypoglossal)

tongue

glyco- (glycogen)

sugar

-gram (myogram)

record

gran- (granulocyte)

grain

-graph, -graphia (electroencephalograph)

to write, record

gyne-, gyno- (gynecologist)

woman

hem-, hemato- (hemopoiesis)

blood

hemi- (hemisphere)

half

hepato- (hepatocyte)

liver

hetero- (heterozygous)

other

histo- (histology)

tissue

holo- (holocrine)

entire

homeo-, homo- (homeostasis)

same

hyal-, hyalo- (hyaline)

glass

hydro- (hydrolysis)

water

hyo- (hyoid bone)

U-shaped

hyper- (hyperpolarization)

above

hypo- (hypothyroid)

under

hyster- (hysterectomy)

uterus

-ia (insomnia)

state or condition

idi- (idiopathic)

one's own

ile- (ileocolic sphincter)

ileum

ili-, ilio- (iliac)

ilium

in- (inactivate)

in, within, or denoting negative effect

infra- (infraorbital)

beneath

inter- (interventricular)

between

intra- (intracapsular)

within

ipsi- (ipsilateral)

itself

iso- (isotonic)

equal

-itis (dermatitis)

inflammation

karyo- (megakaryocyte)

body

kerato- (keratin)

horn

kino-, -kinin (bradykinin)

to move

lact-, lacto-, -lactin (prolactin)

milk

lapar- (laparoscopy)

flank or loins

emma (plasmalemma)

husk

leuko- (leukocyte)

white

liga- (ligase)

to bind together

lip-, lipo- (lipoid)

fat

lith- (cholelithiasis)

stone

lyso-, -lysis, -lyze (hydrolysis)

dissolution

macr- (marcophage)

large

mal- (malabsorption)

abnormal

mamilla- (mamillary)

little breast

mast-, masto- (mastoid)

breast

mega- (megakaryocyte)

big

melan- (melanocyte)

black

men- (menstrual)

month

mero- (merocrine)

part

meso- (mesoderm)

middle

meta- (metaphase)

after, beyond

micr- (microscope)

small

mono- (monocyte)

single

morpho- (morphology)

form

multi- (multicellular)

much, many

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