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Medical TERMINOLOGY   -   A thru Z

Prefixes, roots, suffixes

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: homeless. Root = 'home' and the suffix is 'less'. It can also refer to a condition, disease, disorder, or procedure.
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M

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Term
Meaning
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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