/ Dictionary / Index H hélas*: Meaning and Definition of Find definitions for: hé•las Pronunciation: (ā-läs'), [key] — interj. French. alas! Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. HeLa cell held Related Content Daily Word Quiz: ablution Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language