ossification of the lateral cartilages in a horse's foot
sidebone in American English
(ˈsaidˌboun)
noun
Veterinary Science
ossification of the cartilages in the lateral portion of the foot of a horse, resulting in lameness
Also: sidebones
Word origin
[1810–20; side1 + bone]This word is first recorded in the period 1810–20. Other words that entered Englishat around the same time include: dominance, duplex, liberalism, unitary, voodoo