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crepitation

n.

1. a soft, crackling sound heard on auscultation of the chest, which indicates disease of the lungs or airways.

2. the sound of bones or damaged cartilage surfaces rubbing against each other, as occurs in arthritis and other degenerative skeletal conditions.

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Psychology term of the day

January 14th 2025

focal length

focal length

(symbol: f) the distance between the surface of a lens and the point at which it focuses the light passing through the lens.