/ Dictionary / Index D decagram: Meaning and Definition of Find definitions for: dec•a•gram Pronunciation: (dek'u-gram"), [key] — n. dekagram. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: decagram (Thesaurus) decagon decahedron Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language