/ Dictionary / Index C cylinder block: Meaning and Definition of Find definitions for: cyl'inder block" Pronunciation: [key] — Auto. Auto. the metal casting in which the cylinders of an internal-combustion engine are bored. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cylinder cylinder desk Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language