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medical dictionary online

Many terms frequently used in science and medicine are derived from latin words. By combining the root words with, prefixes and suffixes many of the meanings of the terms can be deciphered.

Use the following resources to better understand medical terms:

Medical Roots or Stems
Prefixes commonly used in medical terms
Suffixes commonly used in medical terms

Complete Glossary of Medical Root Words

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

tachycardia rapid heart beat
tachypnea rapid breathing
taste disorder inability to perceive different flavors
technetium bone sacn radiological investigation to detect stress fractures
tendon a cord that connects mucsle to bone or other tissue
tendonitis inflammation of a tendon or of the tendon covering
thoracotomy surgery to view the lung
thrombolysis the breaking up of a blood clot

an abnormal condition in which a blood clot develops in the blood vessel or in the heart

thrombus a blood clot
thyroplasty surgical technique to improve the voice by altering the cartilages of the larynx
thyroxine a hormone secreted by the thyroid gland which regulates metabolism
tibia shin bone
tinnitus sensation of ringing, roaring or buzzing sound in the ears or head
tissue group or layer of cells that together perform specific functions
tourette syndrome neurological disorder characterized by recurring movements, sounds or tics
transient ischemic attack (TIA) a stroke like event that lasts for a short period of time caused by a blocked blood vessel
tricuspid valve the heart valve that controls blood flow from the right atrium into the right ventricle




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