spher·i·cal (sfîr??-k?l, sf?r?-) also spher·ic (-?k)adj.1. a. Having the shape of a sphere; globular.b. Having a shape approximating that of a sphere.2. Of or relating to a sphere.3. Of or relating to celestial bodies.spher?i·cal·ly adv.spher?i·cal·ness n.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.