| 释义 |
poly·vi·nyl·pyrrolidone
\| ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷+\ noun
Etymology: poly- + vinyl + pyrrolidone
: a water-soluble chemically inert solid polymer (−CH2CHC4H6NO−)n made by polymerization of N-vinyl-pyrrolidone and used chiefly in medicine as a vehicle for drugs (as iodine) and especially formerly as a plasma expander |