medical terminology

a- / an-

without / not

ab-

away from

abdomin/o

abdomen

ablat/o

to remove / take away

abrad/o, abras/o

to scrape off

acanth/o

thorny, spiny

acar/o

mites

acid/o

acid, sour, bitter

acous/o

hearing

acoust/o

hearing/sound

acr/o

extremities

actin/o

ray, radiation

acu-

needle

acu/o, acut/o

sharp, severe

ad-

toward, near

aden/o

gland

adenoid/o

adenoids

adip/o

fat

adren/o

adrenal glands

aer/o

air, gas

agglutin/o

clumping

agit/o

rapidity, restlessness

-agogue

producer, leader

-agra

severe pain

alb/o, albin/o

white

albumin/o

albumin

-algesia, alges/o

pain sensitivity

-algia

pain

allo-

other, different

alveol/o

alveolus

ambi-

around, on both sides, about

ambly/o

dim, dull

ambul/o

to walk

ammon/o

ammonium

amni/o

amnion

amphi-

around, on both sides

amyl/o

starch

an/o

anus

ana-

up, backward, against

andr/o

male

aneurysm/o

aneurysm

angi/o

vessel

anis/o

unequal

ankyl/o

stiff, crooked, bent

anomal/o

irregular

ante-

before, forward

anter/o

front

anthrac/o

coal, carbon, carbuncle

anthrop/o

man, human being

anti-

against

antr/o

antrum

aort/o

aorta

-apheresis

separation, removal

aphth/o

ulcer

apic/o

apex

apo-

away, separation

aque/o

water

arachn/o

spider

arch/i, arch/e, -arche

first

arsenic/o

arsenic

arteri/o

artery

arteriol/o

arteriole

arthr/o

joint

articul/o

joint

aspir/o, aspirat/o

inhaling, removal

-assay

to examine, analyze

-asthenia, asthen/o

weakness

astr/o

star, star-shaped

atel/o

incomplete, imperfect

ather/o

fatty substance, plaque

atmo-

steam, vapor

-atresia

closure, occlusion

atreto-

closed, lacking an opening

atri/o

atrium

atto-

one quintillionth (10^-18)

audi/o, audit/o

hearing

aur/o, auricul/o

ear

auscult/o, auscultat/o

to listen

auto-

self

aux/o

growth, acceleration

axi/o

axis

axill/o

armpit

azot/o

nitrogen, urea