/ Dictionary / Index B bacteriorhodopsin: Meaning and Definition of Find definitions for: bac•te•ri•o•rho•dop•sin Pronunciation: (bak-tēr"ē-ō-rō-dop'sin), [key] — n. Biochem. a protein complex in the membrane of halobacteria that conducts a unique form of photosynthesis, employing the light-sensitive pigment retinal rather than the chlorophyll used by all other known photosynthetic organisms. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bacteriophage bacterioscopy Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language