swayback

/ˈsweɪbæk/
noun
  1. An excessive downward curve in the spine of a horse or other animal, often causing a dip in the back.
    • The veterinarian examined the swayback and recommended special exercises.
    • Breeds like the American Saddlebred can sometimes develop a swayback as they age.
    • The old horse had a noticeable swayback from years of carrying heavy loads.
  2. A similar condition in humans, characterized by an exaggerated inward curve of the lower back (lordosis).
    • Poor posture can lead to a swayback over time.
    • The physical therapist gave her stretches to help correct her swayback.
    • Sitting for long hours at a desk often contributes to a swayback.
adjective
  1. Having an excessive downward curve in the back; swaybacked.
    • The swayback mare was retired from riding but still enjoyed gentle walks.
    • They adopted a swayback dog from the shelter.
    • The swayback posture of the statue made it look weary.
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