/ Dictionary / Index S seidel: Meaning and Definition of Find definitions for: sei•del Pronunciation: (sīd'l, zīd'l), [key] — n. a large beer mug with a capacity of one liter (1.1 quarts) and often having a hinged lid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: seidel (Thesaurus) seiche Seidlitz powders Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language