turn(redirected from turn turtle)
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Related to turn turtle: in favor of
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.
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