dipstick survey
n.— «The authorities have made preparations for a door-to-door survey on May 16 and 17 to cover children left out of the Sunday exercise, and also a “dipstick” survey for four days from May 20. The dipstick survey involves random inspection of houses in both urban and rural areas by the public health staff, that would complete the polio immunisation process in this round,» —“Survey to cover children left out of polio immunisation from today” The Hindu (India) May 17, 2005. (source: Double-Tongued Dictionary)
Further reading
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