/ Dictionary / Index H headstream: Meaning and Definition of Find definitions for: head•stream Pronunciation: (hed'strēm"), [key] — n. a stream that is the source, or one of the sources, of a river. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: headstream (Thesaurus) headstone headstrong Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language