gypsum
gypsum
Noun
This mineral is primarily recognized in modern contexts as the core component of drywall and plaster. It is valued for its softness and its ability to be dehydrated and rehydrated, which allows it to be molded into structural shapes before hardening. As a mass noun, it refers to the mineral substance in general or the bulk material used in construction. It does not have a plural form in standard industrial or geological usage, as it is treated as an uncountable material.
Meanings
Noungypsum
A soft sulfate mineral consisting of calcium sulfate dihydrate, commonly used as a primary ingredient in the manufacture of plaster and wallboard.
"The construction crew installed sheets of gypsum board throughout the new office."