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diatomaceous earth

/ˌdaɪ.ə.təˈmeɪ.ʃəs ɜːrθ/

翻译: 一种天然存在的松软硅质沉积岩,容易碎成细小的白色或灰白色粉末。由硅藻(一种具有坚硬外壳的微小藻类)的化石残骸组成,常用于过滤、温和研磨、杀虫及各种工业用途。

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/ˌdaɪ.ə.təˈmeɪ.ʃəs ɜːrθ/C1formaltechnical
  • zh一种天然存在的松软硅质沉积岩,容易碎成细小的白色或灰白色粉末。由硅藻(一种具有坚硬外壳的微小藻类)的化石残骸组成,常用于过滤、温和研磨、杀虫及各种工业用途。

A naturally occurring, soft, siliceous sedimentary rock that is easily crumbled into a fine white to off-white powder. It is composed of the fossilized remains of diatoms, a type of hard-shelled microalgae, and is used in filtration, as a mild abrasive, as a pest control agent, and in various industrial applications.

  1. Sedimentary rock powderC1formal

    A naturally occurring, soft, siliceous sedimentary rock that is easily crumbled into a fine white to off-white powder. It consists of the fossilized remains of diatoms, a type of hard-shelled algae.

    zh硅藻土

    • Diatomaceous earth is commonly used as a filtration aid in swimming pools.
    • Gardeners often use food-grade diatomaceous earth to control pests like ants and bed bugs.
    • The abrasive properties of diatomaceous earth make it useful in industrial polishes and toothpastes.