jack

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spavin

(spā'vin),
Chronic disorder involving the tarsus (i.e., hock) of the horse.
See also: bog spavin, bone spavin, blood spavin.
Synonym(s): jack spavin, jack
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
Between mid-2014 and mid-2015, the number of jack ups with contracts fell by 13 per cent, and the number of floating units with contracts fell by 18 per cent.
Major rig jobs for the company included three of Saudi Aramco's jack ups; ARB 1 which was in for leg guide repairs, while ARB 2 and Arabiyah 3 both underwent five-year surveys.