diatom
diatom[ˈdʌɪətəm]noun- (Biology)a single-celled alga which has a cell wall of silica. Many kinds are planktonic, and extensive fossil deposits have been found
(生)硅藻
- Class Bacillariophyceae, division Chromophycota or Heterokontophyta (or phylum Bacillariophyta, kingdom Protista)
硅藻纲,杂色藻门或不等长鞭毛门(或硅藻门,原生生物界)
派生diatomaceousadjective语源- mid 19th cent.: from modern Latin Diatoma (genus name), from Greek diatomos 'cut in two', from diatemnein 'to cut through'
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