| 单词 | Rivulariaceae | 
| 释义 | Rivulariaceaeplural noun  Riv·u·lar·i·a·ce·ae    : a family of freshwater blue-green algae (order Hormogonales) consisting of slender gradually attenuated or hair-tipped filaments usually growing in tufts attached to the substrate and frequently mucilaginous   see calothrix , rivularia    rivulariaceous  ¦⸗⸗ˌ⸗⸗¦āshəs | 
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