turn

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turn

(tŭrn),
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.
[A.S. tyrnan]
Obstetrics Version; the rotation of a foetus for vaginal 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
References in periodicals archive ?
The campaign "brings harm to the church and turns against our homeland," read a statement by the Polish Bishops Council.
As we learn after she turns against Father Hooke, Mary's campaign against abortion is inspired by the loss of her own three children - and her husband - in an ice-skating accident 13 years earlier, which happened partly because she was drinking at the time.
8 LANCET, further support dopamine's good guy-bad guy image: This chemical helps provide the high and then turns against users when they fail to deliver the goods -- more drugs (SN: 6/30/90, p.