n :  the procedure of removing fluid (as from a body cavity) - see LUMBAR PUNCTURE 
, vt, tapped  tap*ping  :  to pierce so as to let out or draw off a fluid < the spine for a specimen of cerebrospinal fluid> 
vt, tapped  tap*ping  :  to strike lightly esp. with a slight sound
n :  a light usu. audible blow : also  :  its sound .
 
 
 
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