fine needle aspiration
noun
: the process of obtaining a sample of cells and bits of tissue for examination by applying suction through a fine needle attached to a syringe
—abbreviation FNA
compare core biopsy
Cite this Entry
“Fine needle aspiration.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/fine%20needle%20aspiration. Accessed 28 May. 2025.
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