Meanings
- uncountableA plasterlike artificial stone compound made to resemble stone (rock); the stonelike (rocklike) veneer thus produced.
Near-synonym: permastone (broadly synonymous)
1 more example
He turned into Singleton and found a block of row houses that gave a sense of having been skimped on. […] Most were covered in formstone, but the bricks of Number 16 had been painted a rubbery maroon.
1985, Anne Tyler, The Accidental Tourist, Knopf, →ISBN, page 199Synonyms: permastone[Appendix:Glossary
Synonyms & antonyms
nounA plasterlike artificial stone compound made to resemble stone (rock); the stonelike (rocklike) veneer thus produced.
Origin
A genericization from a trade name of the 1940s, FormStone, itself a proprialization from what had previously been a lexical gap compound, form + stone.
Full word history & related roots →Cite this entry
formstone. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/formstone
“formstone.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/formstone. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “formstone,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/formstone.
Source: formstone on Wiktionary, CC BY-SA 4.0.