/ Dictionary / Index H hectogram: Meaning and Definition of Find definitions for: hec•to•gram Pronunciation: (hek'tu-gram"), [key] — n. a unit of mass or weight equal to 100 grams, equivalent to 3.527 ounces avoirdupois. Abbr.: hg&hasp; Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hectogram (Thesaurus) hectocotylus hectograph Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language