plimsolls

/P L IH1 M Z AH0 L Z/
noun
  1. 1

    A rubber-soled lace-up canvas shoe for sports or onboard ships; a precursor of trainers.

  2. 2

    The plimsoll symbol โฆต (or o) that is used as a superscript in the notation of thermodynamics to indicate an arbitrarily chosen non-zero reference point.

Source: https://en.wiktionary.org/wiki/plimsoll, https://en.wiktionary.org/wiki/plimsolls