Source : Webster's Revised Unabridged Dictionary (1913)

Orbicular \Or*bic"u*lar\, a. [L. orbicularis, fr. orbiculus,
   dim. of orbis orb: cf. F. orbiculaire.]
   Resembling or having the form of an orb; spherical; circular;
   orbiculate. -- {Or*bic"u*lar*ly}, adv. --
   {Or*bic"u*lar*ness}, n.

         Orbicular as the disk of a planet.       --De Quincey.