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Medical TERMINOLOGY   -   A thru Z

Prefixes, roots, suffixes  [ A ]

[ 1 ] Quick Introduction.

[ 2 ] Word Building Reference (See below): 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 (Reference).
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

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J  K  L  M  N  O  P  Q
R  S  T  U  V  W  X  Y  Z
Also check out the medical abbreviations section
 

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Term  -   [ Meaning]

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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Medical Calculators - A thru Z
Lab Values - A thru Z