- tap
- 1. To withdraw fluid from a cavity by means of a trocar and cannula, hollow needle, or catheter. 2. To strike lightly with the finger or a hammerlike instrument in percussion or to elicit a tendon reflex. 3. A light blow. 4. An East Indian fever of undetermined nature. 5. An instrument to cut threads in a hole in bone prior to inserting a screw. [M.E. tappe, fr. A.S. taeppa]- heel t. a reflex movement of the toes when the heel is tapped, present in multiple sclerosis and other diseases of the pyramidal tract.- mitral t. 1. the palpable equivalent of the opening snap of the mitral valve; 2. the palpable accentuated first heart sound of mitral stenosis; often mistaken for the apex beat.- pericardial t. SYN: pericardiocentesis.- pleural t. SYN: thoracentesis.* * *technology architecture project; tick anticoagulant peptide; total access plus [computer-based system]; toxicological agent protection or protective; transesophageal atrial pacing; transluminal angioplasty; transmembrane action potential; transporter in antigen processing; trypsinogen-activating peptide
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tap vt, tapped; tap·ping to pierce so as to let out or draw off a fluid <\tap the spine for a specimen of cerebrospinal fluid>tap vt, tapped; tap·ping to strike lightly esp. with a slight soundtap n a light usu. audible blow also its sound* * *
(tap) 1. a quick, light blow. 2. to drain off fluid by paracentesis.
Medical dictionary. 2011.