Sinonim kieselguhr

English Thesaurus

1. a light soil consisting of siliceous diatom remains and often used as a filtering material (noun.substance)

hypernym	:	filter,
definition	:	device that removes something from whatever passes through it (noun.artifact)

hypernym	:	earth, ground,
definition	:	the loose soft material that makes up a large part of the land surface (noun.substance)