arcuate

from WordNet (r) 3.0 (2006)

arcuate
    adj 1: forming or resembling an arch; "an arched ceiling" [syn:
           {arced}, {arched}, {arching}, {arciform}, {arcuate},
           {bowed}]

from The Collaborative International Dictionary of English v.0.48

Arcuate \Arc"u*ate\, Arcuated \Arc"u*a`ted\(#), a. [L. arcuatus,
   p. p. of arcuare to shape like a bow, fr. arcus. See {Arc}.]
   Bent or curved in the form of a bow. "Arcuate stalks."
   --Gray.
   [1913 Webster]