/ Dictionary / Index H halobacteria: Meaning and Definition of Find definitions for: hal•o•bac•te•ri•a Pronunciation: (hal"ō-bak-tēr'ē-u), [key] — sing. -te•ri•um rod-shaped archaebacteria, as of the genera Halobacterium and Halococcus, occurring in saline environments as the Dead Sea, salt flats, and brine, and using the pigment bacteriorhodopsin rather than chlorophyll for photosynthesis. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: halobacteria (Thesaurus) halo halobiont Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language