diatom

/dahy-uh-tuhm, -tom/US // ˈdaɪ ə təm, -ˌtɒm //UK // (ˈdaɪətəm, -ˌtɒm) //

硅藻,硅藻类,硅藻土,矽藻土

Definitions

n.名词 noun

1
- : any of numerous microscopic, unicellular, marine or freshwater algae of the phylum Chrysophyta, having cell walls containing silica.

You think of cathedrals falling into their basements after a brutal reformation, the dynamite containing, yes, diatoms—the silicate reliquiae of ocean microorganisms.
The size of the diatom, the amount of gelatine, and several other factors, will enter into the question of success or failure.
It is necessary to avoid any air current which will cause the diatom to fall from the thread.
Thus Pseudocerataulus Kinkeri is a diatom which cannot possibly be seen without the use of a microscope.
In fact, the two pass without any sharp boundary into each other, and both present transitions to the Diatom ooze.
The diatom itself may be washed in the same way, if it is not too small.