SLIPFORM
Etymology
Noun
slipform (countable and uncountable, plural slipforms)
(uncountable) 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.
(countable) A moveable form used when setting concrete using the slipform technique.
Verb
slipform (third-person singular simple present slipforms, present participle slipforming, simple past and past participle slipformed)
To use the slipform technique when creating a concrete structure.
Source: Wiktionary