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WordReference Random House Unabridged Dictionary of American English © 2024hal•o•bac•te•ri•a (hal′ō bak tēr′ē ə),USA pronunciation n.pl., sing. -te•ri•um (-tēr′ē əm).USA pronunciation 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 hal•o•bac•ters (hal′ō bak′tərz).USA pronunciation - 1975–80; halo- + bacteria; compare Neo-Latin Halobacterium a genus of such bacteria
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