container syndrome
n.— «It’s a controversial theory, but a vocal contingent of doctors and physical therapists believe the strap-in chairs and carriers that millions of parents have come to rely on are contributing to an increase in cases of misshapen skulls, contorted neck muscles and delayed motor skills such as crawling and walking. A few frustrated therapists even have a name for the problems that can occur in immobilized infants: “container syndrome.” The best solution, they say, is to get children out of their seats and put them on the ground for “tummy time.”» —“Experts say ‘tummy time’ key for tots” in Chicago Dallas Morning News (Texas) Jan. 30, 2008. (source: Double-Tongued Dictionary)