/ Dictionary / Index A acorn clock: Meaning and Definition of Find definitions for: a'corn clock" Pronunciation: [key] a mantel clock of the first half of the 19th century, having the upper part of the case shaped with a double ogee curve to resemble an acorn. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acorn chair acorn spoon Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language