turn(redirected from turn up (one's) nose)
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To revolve or cause to revolve; specifically, to change the position of the fetus within the uterus to convert a malpresentation into a presentation permitting normal delivery.
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Public health The abrupt change in a domesticated animal’s behaviour, from docile to aggressive, resulting in attacks on humans, which may be fatal; turning is most common in pitbull terrriers and rottweilers, which together cause the bulk of dog bite-related fatalities in the US
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.