Definition of pyrrolidone in US English:

pyrrolidone

noun

Chemistry
  • A colorless weakly basic solid that is derived from pyrrolidine.

    Chemical formula: C₄H₇NO

    • ‘The water-soluble macromolecular compound preferably includes a copolymer of N-vinyl - 2 - pyrrolidone and vinyl acetate.’

Pronunciation

pyrrolidone

/pəˈrōləˌdōn/