Definition of sway-backed in US English:

sway-backed

adjective

  • See swayback

    • ‘Perhaps we should outlaw the internal combustion engine and return to a transportation system of mules and big sway-backed sheep.’
    • ‘The two principal species of elephant are Loxodonta africana, the sway-backed African elephant, and Elephas maximus, the Asian elephant.’
    • ‘The Cheetah was profoundly sway-backed, his shoulders, far from being laid back, were set almost forward of his chest, his ‘wrists’ were virtually glued together, and his big front paws pointed east and west.’

Pronunciation

sway-backed

/ˈsweɪbækt//ˈswābakt/