navicular disease

From The Collaborative International Dictionary of English v.0.48:

Navicular \Na*vic"u*lar\, a. [L. navicularius, fr. navicula,
   dim. of navis ship: cf. F. naviculaire.]
   1. Of, pertaining to, or resembling, a boat or ship.
      [1913 Webster]

   2. Shaped like a boat; cymbiform; scaphoid; as, the navicular
      glumes of most grasses; the navicular bone.
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   Navicular bone. (Anat.)
      (a) One of the middle bones of the tarsus, corresponding
          to the centrale; -- called also scaphoid.
      (b) A proximal bone on the radial side of the carpus; the

   Navicular disease (Far.), a disease affecting the navicular
      bone, or the adjacent parts, in a horse's foot.
      [1913 Webster]
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