powellite1
/ˈpaʊəlʌɪt/Mineralogy
noun
An uncommon mineral of the tetragonal crystal system which consists of calcium molybdate, CaMoO4 (usually with molybdenum partly replaced by tungsten), and occurs chiefly as translucent, pyramidal crystals with a yellow fluorescence.
Origin
Late 19th century. From the name of Major John Wesley Powell, director of the U.S. Geological Survey + -ite.
Powellite2
/ˈpaʊəlʌɪt/British Polit. Now chiefly historical
adjective
Of, relating to, characteristic of, or advocating Powellism.
noun
A follower or supporter of Enoch Powell or of Powellism.
Origin
1960s; earliest use found in The Economist. From the name of John Enoch Powell + -ite.