Definition of "PPS"

PPS

noun
1. (organic chemistry) Initialism of polyphenylene sulfide, polyphenylenesulphide.
2. (UK politics) Initialism of parliamentary private secretary.
  Quotations
  Shah has since apologised, saying: “I deeply regret the hurt I have caused.” It emerged later that she had stepped down as PPS to McDonnell.
  2016 April 26, Nazia Parveen, “Bradford MP Naz Shah quits as McDonnell's PPS after antisemitic posts”, in The Guardian‎
3. Initialism of post postscriptum (initialism indicating a footnote to a PS footnote)