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Medical terminology is composed of a prefix, root word, and suffix:
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.
Additional resources:   [Intro to med terms] [Med terms rules] [Med term reference] [Word building reference]  [Practice Exams]

Alphabetical Listing of Med Terms

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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

For a quick overview and tutorial on medical terminology, check out our Introduction to Medical Terminology.


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