noun Etymology: German Rutil, from Latin rutilus Date: 1803 a reddish-brown to black mineral that consists of titanium dioxide usually with a little iron and has a brilliant metallic or adamantine luster
RUTILE
Meaning of RUTILE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012