First Known Use: circa 1902
Dictionary
laitance
noun lai·tance \ˈlā-tən(t)s\
Definition of LAITANCE
: 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)
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Origin of LAITANCE
French, from lait milk, from Latin lact-, lac — more at galaxy
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