lumbar puncture(redirected from lumbar punctures)
Also found in: Thesaurus, Medical, Encyclopedia.
The insertion of a hollow needle beneath the arachnoid membrane of the spinal cord in the lumbar region to withdraw cerebrospinal fluid for diagnostic purposes or to administer a drug.
(Medicine) med insertion of a hollow needle into the lower region of the spinal cord to withdraw cerebrospinal fluid, introduce drugs, etc
A method of obtaining cerebrospinal fluid for diagnostic purposes by injecting a needle between two vertebrae at the base of the spine; also used for administering drugs for treatment or anesthesia.
Switch to new thesaurus
|Noun||1.||lumbar puncture - removal by centesis of fluid from the subarachnoid space of the lumbar region of the spinal cord for diagnostic or therapeutic purposes|
centesis - (surgery) the act of puncturing a body cavity or organ with a hollow needle in order to draw out fluid