portland cement

noun port·land cement \ ˈpȯrt-lən(d)- \

Definition of portland cement

: a hydraulic cement made by finely pulverizing the clinker produced by calcining to incipient fusion a mixture of clay and limestone or similar materials

Recent Examples of portland cement from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'portland cement.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of portland cement

Isle of Portland, England; from its resemblance to a limestone found there


Learn More about portland cement


Seen and Heard

What made you want to look up portland cement? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

soothing, mild, or foolish

Get Word of the Day daily email!

Test Your Vocabulary

Name More Food!

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!