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[ 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 – M

macro-   large
mal-   bad
-malacia   softening
malleol/o   malleolus
mamm/o   breast
mandibul/o   mandible (lower jaw bone) 
-mania   obsessive preoccupation 
-masesis   mastication, chewing
mast/o   breast
mastoid/o   mastoid process (behind the ear) 
maxill/o   maxilla (upper jaw bone) 
meat/o   meatus (opening) 
medi/o   middle
medic/o   to heal, healing
mediastin/o   mediastinum
medi/o   middle 
medull/o   medulla (inner section); middle; soft, marrow 
mega-   large
-megaly   enlargement
melan/o   black
mel/o   limb, limbs 
men/o   menses; menstruation 
mening/o   meninges (membranes covering the spinal cord & brain) 
meningi/o   meninges
ment/o   mind; chin 
mer/o   part
meso-   middle
meta-   change; beyond 
metacarp/o   metacarpals (hand bones) 
metatars/o   metatarsals (foot bones) 
-meter   measure
method/o   procedure, technique 
metr/o   uterus (womb); measure 
metri/o   uterus (womb) 
-metry   process of measuring 
mi/o   smaller; less 
micro-   small
-mimesis   imitation, simulation 
-mimetic   mimic; copy 
-mission   to send 
-mnesia   memory 
mogi-   difficult 
mon/o   one; single 
morph/o   shape; form 
mort/o   death
-mortem   death
-motor   movement
muc/o   mucus
mucos/o   mucous membrane (mucosa) 
multi-   many
muscul/o   muscle 
mut/a   genetic change 
mutagen/o   causing genetic change 
my/o   muscle
myc/o   fungus
mydr/o   wide
myel/o   spinal cord; bone marrow 
myocardi/o   myocardium (heart muscle) 
myom/o   muscle tumor 
myos/o   muscle
myring/o   tympanic membrane (eardrum) 
myx/o   mucus


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