titanium dioxide

noun

, Chemistry.

1. a white, water-insoluble powder, TiO 2 , used chiefly in white pigments, plastics, ceramics, and for delustering synthetic fibers.

titanium dioxide

noun

1. a white insoluble powder occurring naturally as rutile and used chiefly as a pigment of high covering power and durability. Formula: TiO 2 Also calledtitanium oxidetitanic oxidetitania

titanium dioxide

1. A white powder used as an opaque white pigment. It occurs naturally as the mineral rutile. Chemical formula: TiO 2 .

Word History and Origins

Origin of titanium dioxide¹

First recorded in 1920–25

Example Sentences

In 2008, researchers at Hewlett-Packard developed the first practical memristor, using titanium dioxide.

From MIT Technology Review

Physical formulas use minerals—typically zinc or titanium dioxide—to create a physical barrier against the sun’s rays, while the latter use chemicals such as oxybenzone, avobenzone, octinoxate and homosalate to absorb UV light.

From Time

The pellets are, as before, coated in titanium dioxide and stearin, making them resemble tiny, irregular Tic-Tacs, which can then be mixed with salt.

From MIT Technology Review

They aren't diamonds; they're simply well-cut crystals of titanium dioxide.

From Project Gutenberg