laitance

American  

[layt-ns] / ˈleɪt ns /

noun

1. a milky deposit on the surface of new cement or concrete, usually caused by too much water.

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Etymology

Origin of laitance

1905–10; special use of French laitance milt, equivalent to lait milk (< Latin lact-, stem of lac ) + -ance -ance

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Example Sentences

See Examples For:

laitance

Even in almost still water some of the cement will rise to the surface and appear as a sort of milky scum, commonly called laitance.

From Concrete Construction Methods and Costs by Halbert Powers Gillette

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