Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A usually hollow building block made with concrete and coal cinders.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A lightweight building block made from cinders and concrete.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a light concrete building block made with cinder aggregate

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  • Merriam-Webster Dictionary:

    noun

    Date: 1926

    : a hollow rectangular building block made of cement and coal cinders

    February 22, 2008