Portland cement

noun

Definitions

Noun
  1. 1
    A finely-ground powder made by heating and pulverizing limestone and clay. countable, uncountable

    "Ordinary Portland Cement (OPC) is the world's most common form of cement. The blue plaque dedicated to inventor Joseph Aspdin describes OPC as "one of mankind's most important manufactured materials"."

  2. 2
    Alternative letter-case form of Portland cement. alt-of, countable, uncountable
  3. 3
    a cement that hardens under water; made by heating limestone and clay in a kiln and pulverizing the result wordnet

Etymology

From its resemblance to limestone from Portland in Dorset.

Next best steps

Mini challenge

Want a quick game? Try Word Finder.