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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

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n o p q r s t u v w x y z

Medical Terminology Reference – T

tachy-   fast
tal/o   talus 
tars/o   tarsus; hindfoot or ankle 
tauto-   identical, same 
tax/o   order; coordination 
techn/o   skill, art
tel/o   complete
tele/o   distant
temp/o, tempor/o   period of time, the temples
ten   deca-
ten/o   tendon
tendin/o   tendon
-tension   pressure
tens/o   stretched, strained 
tephr/o   gray (ashen) 
terat/o   monster; malformed fetus 
test/o   testis
tetan/o   tetanus
tetra-   four
thalam/o   thalamus
thalass/o   sea
thanat/o   death 
the/o   put; place 
thec/o   sheath
thel/o   nipple
therapeut/o   treatment
-therapy   treatment
therm/o   heat
thorac/o   chest
-thorax   chest; pleural cavity 
three   tri-
thromb/o   clot
-tropia   to turn 
thym/o   thymus gland 
-thymia   mind (condition of) 
-thymic   pertaining to mind 
thyr/o   thyroid gland; sheild 
thyroid/o   thyroid gland 
tibi/o   tibia (shin bone) 
-tic   pertaining to 
toc/o   labor; birth 
-tocia   labor; birth (condition of) 
-tocin   labor; birth (a substance for) 
tom/o   to cut 
-tome   instrument to cut 
-tomy   process of cutting 
ton/o   tension
tone/o   to stretch 
tonsill/o   tonsil
top/o   place; position; location 
torso   twisted
tox/o   poison
toxic/o   poison
trache/o   trachea (windpipe) 
trans-   across; through 
traumat/o   trauma, injury, wound
trem/o, tremul/o   shaking, trembling
-tresia   opening
tri-   three
trich/o   hair
trigon/o   trigone (area within the bladder) 
tri/o   to sort out, sorting 
-tripsy   to crush 
troph/o   nourishment; development 
-trophy   nourishment; development (condition of) 
-tropia   to turn 
-tropic   turning
-tropin   stimulate; act on 
tub/o   tube 
tumesc/o, -tumescence   swelling 
tympan/o   tympanic membrane (eardrum); middle ear 
-type   classification; picture 
typhl/o   cecum, blindness 


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