/ Dictionary / Index S selenium cell: Meaning and Definition of Find definitions for: sele'nium cell" Pronunciation: [key] — Elect. Elect. a photovoltaic cell consisting of a thin strip of selenium placed between two metal electrodes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. selenium selenium rectifier Related Content Daily Word Quiz: garrulous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language