KIESELGUHRS
Scrabble letter values: K5I1E1S1E1L1G2U1H4R1S1 = 19
Definition
KIESELGUHRS is the plural of KIESELGUHR.
noun KIESELGUHR: a light soil consisting of siliceous diatom remains and often used as a filtering material.
Synonyms of KIESELGUHR: diatomaceous_earth, diatomite