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rhizobium
[rhizobium 词源字典]
"A nitrogen-fixing bacterium that is common in the soil, especially in the root nodules of leguminous plants", 1920s: modern Latin, from rhizo- 'root' + Greek
bios
'life'.
[rhizobium etymology, rhizobium origin, 英语词源]
[rhizobium 词源字典]