Bible Dictionaries
Smectite

Webster's Dictionary

(n.) A hydrous silicate of alumina, of a greenish color, which, in certain states of humidity, appears transparent and almost gelatinous.

Bibliography Information
Webster, Noah. Entry for 'Smectite'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​s/smectite.html. 1828.