molding plaster

noun

Definition of molding plaster

: a finely ground retarded gypsum plaster for use in molds and for cast ornaments (as rosettes, medallions, friezes)

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“Molding plaster.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/molding%20plaster. Accessed 29 Nov. 2020.

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