lai·​tance ˈlā-tᵊn(t)s How to pronounce laitance (audio)
: an accumulation of fine particles on the surface of fresh concrete due to an upward movement of water (as when excessive mixing water is used)

Word History


French, from lait milk, from Latin lact-, lac — more at galaxy

First Known Use

circa 1902, in the meaning defined above

Time Traveler
The first known use of laitance was circa 1902

Dictionary Entries Near laitance

Cite this Entry

“Laitance.” Dictionary, Merriam-Webster, Accessed 24 Feb. 2024.

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