slipform

/S L IH1 P F AO0 R M/
noun
  1. 1

    A type of process for setting concrete which uses moveable forms that are moved and reused once the concrete is stiff enough to retain its shape under its own weight.

  2. 2

    A moveable form used when setting concrete using the slipform technique.

verb
  1. 1

    To use the slipform technique when creating a concrete structure.

Source: https://en.wiktionary.org/wiki/slipform