MuschelkalkMusch"el*kalk`\, n. [G., from muschel shell + kalk limestone.] (Geol.) A kind of shell limestone, whose strata form the middle one of the three divisions of the Triassic formation in Germany. See Chart, under Geology.
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|a chattering or flighty, light-headed person.|
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