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. [ 1913 Webster ]
Orbicular as the disk of a planet. De Quincey. [ 1913 Webster ]