[ huh-loi-sahyt, -zahyt, ha- ]
/ həˈlɔɪ saɪt, -zaɪt, hæ- /
a refractory clay mineral similar in composition to kaolinite.
TAKE ROUND 2 OF OUR PSAT VOCABULARY QUIZ!
Here is our second set of teacher-selected PSAT vocabulary words. Do you know the meanings of these terms?
Question 1 of 10
Origin of halloysite
1820–30; after Jean-Baptiste-Julien Omalius d'Halloy (1783–1875), Belgian geologist; with -site for -ite1, after mineral names formed from surnames ending in s
Words nearby halloysite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020