- A slender, solid, usually sharp-pointed instrument used for puncturing tissues, suturing, or passing a ligature around or through a vessel.
- A hollow needle used for injection, aspiration, biopsy, or to guide introduction of a catheter into a vessel or other space.
- To separate the tissues by means of one or two needles, in the dissection of small parts.
- To perform discission of a cataract with a knife needle.
[M.E. nedle, fr. A.S. naedl]
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Examples: glitazone, GI cocktail, etc.