jury-mast

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jury-mast

(jūr′ē-măst) [L. jurare, to be right, + AS. masc, a stick]
An apparatus for support of the head in diseases of the spine.
Medical Dictionary, © 2009 Farlex and Partners

jury-mast

An upright bar incorporated into a Plaster of Paris jacket and used as a head support in the treatment of spinal disease.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
After their yacht Ceramco New Zealand was dismasted during the Whitbread Race, Sir Peter Blake and his crew sailed 4,200 miles with a jury rig. They still managed to finish the race and certainly weren't the last, coming 18th out of 26 yachts.
The boat was sailed into Westernport under jury rig in winds gusting 60 knots after losing its rudder on the delivery voyage.