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A pediatric intensive care unit is an area within a hospital specializing in the care of critically ill infants, children, and teenagers.
My neighbour's daughter is in the PICU after being invloved in a very severe automobile accident.
by Eduardo1271 August 14, 2012
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It is a nice way of calling someone a stupid idiot, or stupid and idiot
ur such a picu. I hate u.
by Fake name here. April 16, 2017
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