单词 | archaebacteria |
释义 | archaebacteria [´ar·kē·bak`tir·ē·ǝ] MICROBIOLOGY A group of unusual prokaryotic organisms that microscopically resemble true bacteria but differ biochemically and genetically, and form a distinct evolutionary group; some occur widely in oxygen-free environments and produce methane, while others are found in extreme salty or acidic conditions or grow at high temperatures. |
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