HOSA Med Terms

a, an-

not, without

ab

— away from; movement away from a structure

ad

— toward; movement toward a structure

ante

— before or forward in time

anti

— against or opposing

bi

— two or double

brady

— slow; abnormally slow

circum

— around or surrounding

contra

— against or opposite

de

— down, away from, or removal

dia

— through or across

dys

— painful, difficult, or abnormal

ecto

— outside or outer

endo

— within or inner

epi

— upon, on, or above

hyper

— excessive or above normal

hypo

— below or deficient

inter

— between

intra

— within

macro

— large

micro

— small

neo

— new

peri

— around or surrounding

post

— after

pre

— before

retro

— backward or behind

sub

— under or below

tachy

— fast; abnormally rapid

trans

— across or through

ultra

— beyond or excessive

algia — pain or painful condition

cele — hernia or protrusion

centesis — surgical puncture to remove fluid

ectomy — surgical removal

emia — blood condition

genic — producing or originating

gram — record or picture

graphy — process of recording

itis — inflammation

logist — specialist in a field of study

logy — study of

malacia — abnormal softening

megaly — enlargement

oma — tumor or mass

osis — abnormal condition or disease

pathy — disease or disorder

plasty — surgical repair

rrhage — excessive bleeding

rrhea — flow or discharge

sclerosis — abnormal hardening

scope — instrument for visual examination

scopy — process of visual examination

stasis — stopping or controlling

trophy — nourishment or development

aden/o — gland

angi/o — vessel (blood or lymph)

arthr/o — joint

cardi/o — heart

cephal/o — head

cerebr/o — brain

chol/e — bile or gall

col/o — colon or large intestine

crani/o — skull

cyan/o — blue

dermat/o — skin

encephal/o — brain

enter/o — intestine

erythr/o — red

gastr/o — stomach

glyc/o — sugar or glucose

gynec/o — female reproductive system

hemat/o — blood

hepat/o — liver

hist/o — tissue

laryng/o — larynx or voice box

leuk/o — white

my/o — muscle

nephr/o — kidney

neur/o — nerve

onc/o — tumor

ophthalm/o — eye

oste/o — bone

ot/o — ear

path/o — disease

phleb/o — vein

pulmon/o — lung

ren/o — kidney

rhin/o — nose

splen/o — spleen

thorac/o — chest

ur/o — urine or urinary tract

vas/o — vessel

ABG — arterial blood gases; test measuring oxygen, carbon dioxide, and pH levels in arterial blood

AD — right ear (auris dextra)

AS — left ear (auris sinistra)

AU — both ears (auris uterque)

BP — blood pressure; force of blood against artery walls

BUN — blood urea nitrogen; lab test evaluating kidney function

BMI — body mass index; ratio of height to weight used to assess body fat

CBC — complete blood count; blood test measuring cells and components