/ Dictionary / Index C cylindroid: Meaning and Definition of Find definitions for: cyl•in•droid Pronunciation: (sil'in-droid"), [key] — n. a solid having the form of a cylinder, esp. one with an elliptical, as opposed to a circular, cross section. —adj. resembling a cylinder. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cylindrical coordinates cylix Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language