/pray"nuyt, pren"uyt/ , n.
a mineral, hydrous calcium aluminum silicate, Ca 2 Al 2 Si 3 O 10 (OH) 2 , occurring in light-green reniform aggregates or tabular crystals.
[ 1785-95; named after Col. Van Prehn, 18th-century Dutchman who brought it from South Africa to Europe; see -ITE 1 ]