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. Also called: titanium oxide.  titanic oxide.  titania. a white insoluble powder occurring naturally as rutile and used chiefly as a pigment of high covering power and durability. Formula: TiO 2

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

The retail giant plans to nix ingredients including titanium dioxide, a food coloring, and azodicarbonamide, used to help bread rise consistently.

Read more on The Wall Street Journal

For decades, Iluka has been mining zircon in Australia - a key ingredient in ceramics, and titanium dioxide used in the pigmentation of paint, plastics and paper.

Read more on BBC

The candymaker announced in late May that it would no longer use titanium dioxide, a potentially carcinogenic additive that was banned in the European Union in 2022, to make Skittles in the U.S.

Read more on Salon

The White House's Make America Healthy Again report published earlier this month also spotlighted titanium dioxide and other food additives as a key concern.

Read more on BBC

Kourosh’s research has led to specific recommendations for skin protection during fire events, such as using mineral sunscreen containing zinc and titanium dioxide.

Read more on Los Angeles Times