29 October 2004

Word for the Day

cavitation · kâ`-v&-'tEI-sh&n · noun

: the process of cavitating (verb): as a) : the formation of partial vacuums in a liquid by a swiftly moving solid body (as a propeller) or by high-intensity sound waves (i.e. intense turbulence); also : the pitting and wearing away of solid surfaces (as of metal or concrete) as a result of the collapse of these vacuums in surrounding liquid; b) : the formation of cavities in an organ or tissue especially in disease

Etymology: cavity + -ation

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