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Medical TERMINOLOGY

[ 1 ] Quick Introduction.

[ 2 ] Word Building Reference: new icon   This is a great reference to help strengthen your understanding of medical terminology.   See how common medical terms are created using the various prefixes, suffixes, and root words.

[ 3 ]  Medical Terms – Singular versus plural rules

[ 4 ]  Medical Terminology Exams  new icon   Twenty new exams were created to test your knowledge of medical terminology.

[ 5 ]  Medical Terms – Prefixes, roots, suffixes (see links below)

Prefix: A prefix is placed at the beginning of a word to modify or change its meaning. Pre means “before.” Prefixes may also indicate a location, number, or time.
Root: central part of a word.
Suffix: The ending part of a word that modifies the meaning of the word.
Example: cholecystitis. Root = ‘cholecyst/o’ -Definition: gallbladder and the suffix is ‘itis’ – Definition: inflammation. Translation: inflammation of the gallbladder.

Alphabetical Listing of Med Terms

a b c d e f g h i j k l m
n o p q r s t u v w x y z

Medical Terminology Reference

a-   no; not; without
an-     no; not; without
ab-      away from
abdomin/o      abdomen
-ac      pertaining to
acanth/o       spiny; thorny
acar/o       mites
acetabul/o   acetabulum (hip socket)
acous/o       hearing
acoust/o       hearing, sound
acr/o        extremities; top; extreme point
acromi/o         acromion (extension of shoulder bone)
actin/o         light
acu/o      sharp; severe; sudden
-acusis       hearing
ad-       toward
-ad       toward
aden/o       gland
adenoid/o   adenoids
adip/o        fat
adren/o       adrenal gland
adrenal/o   adrenal gland
aer/o       air
af-       toward
agglutin/o   clumping; sticking together
-agogue      producer, leader
-agon       to assemble; gather
agora-       marketplace
-agra       excessive pain
-al       pertaining to
alb/o       white
albin/o       white
albumin/o   albumin (protein)
alges/o       sensitivity to pain
-algesia        sensitivity to pain
-algia       pain
all/o       other
alveol/o        alveolus; air sac; small sac
ambi-       around, on both sides, about
ambly/o       dim; dull
amphi-      around, on both sides
-amine       nitrogen compound
ammon/o        ammonium
amni/o      amnion (sac surrounding the embryo)
amyl/o       starch
an/o      anus
-an       pertaining to
ana-    up; apart; backward; again; anew
andr/o       male
aneurysm/o   aneurysm (widening of blood vessel)
angi/o       vessel (blood)
anis/o       unequal
ankyl/o       stiff
ante-       before; forward
anter/o       front
anthrac/o   coal
anthr/o       antrum of the stomach
anti-       against
anxi/o       uneasy; anxious
aort/o       aorta (largest artery)
-apheresis    removal
aphth/o        ulcer
apo-       off; away
aponeur/o   aponeurosis (type of tendon)
append/o       appendix
appendic/o   appendix
aque/o       water
-ar       pertaining to
arachn/o       spider
-arche       beginning
arsenic/o    arsenic
arter/o       artery
arteri/o       artery
arteriol/o   arteriole (small artery)
arthr/o      joint
-arthria       articulate (speak distinctly)
articul/o   joint
-artresia   closure, occlusion
atreto-       closed, lacking an opening
-ary       pertaining to
asbest/o       asbestos
-ase       enzyme
aspir/o      removal
-assay      to examine, analyze
-asthenia   lack of strength
astr/o       star, star-shaped
aque/o      water
atel/o       incomplete
ather/o      plaque (fatty substance)
-ation      process; condition
atri/o      atrium (upper heart chamber)
atmo-       steam, vapor
audi/o     hearing
audit/o       hearing
aur/o       ear
auricul/o   ear
auscult/o   to listen
aut/o       self; own
aut-       self; own
auto-       self; own
aux/o       growth, acceleration
axill/o       armpit
axi/o       axis
azot/o       urea; nitrogen

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