polyvinylpyrrolidone
noun
poly·vi·nyl·pyr·rol·i·done
-ˌvīn-ᵊl-pi-ˈräl-ə-ˌdōn 
: a water-soluble chemically inert solid polymer (−CH2CHC4H6NO−)n used chiefly in medicine as a vehicle for drugs (as iodine) and especially formerly as a plasma expander
called also povidone
Cite this Entry
“Polyvinylpyrrolidone.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/polyvinylpyrrolidone. Accessed 30 Oct. 2025.
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