English

Verb

unzipping

1. present participle of unzip

Noun

unzipping ‎(plural unzippings)

1. The act by which something is unzipped.
   • 2013, Joyce Thompson, How to Greet Strangers: A Mystery (page 102)

     It was impulse, not intention, one of those great unzippings of the superego that lets the id shine through.