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blood spavin

noun Veterinary Pathology.
  1. See under spavin(def 1).
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spavin

[spav-in]
noun Veterinary Pathology.
  1. a disease of the hock joint of horses in which enlargement occurs because of collected fluids (bog spavin), bony growth (bone spavin), or distention of the veins (blood spavin).
  2. an excrescence or enlargement so formed.
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Origin of spavin

1400–50; late Middle English spaveyne < Old French (e)spavain, esparvain swelling < ?
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for blood spavin

spavin

noun
  1. vet science enlargement of the hock of a horse by a bony growth (bony spavin) or fluid accumulation in the joint (bog spavin), usually caused by inflammation or injury, and often resulting in lameness
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Word Origin for spavin

C15: from Old French espavin, of unknown origin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for blood spavin

spavin

n.

disease of the hock joint of a horse, early 15c., from Middle French espavain, perhaps from Frankish *sparwan "sparrow" (see sparrow), so called perhaps from comparison of the bird's awkward gait to that of a horse affected with spavin.

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Online Etymology Dictionary, © 2010 Douglas Harper