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

It’s important to use sunscreen specifically made for animals, Jae says, because most sunscreens for humans contain ingredients like zinc oxide and titanium dioxide that are toxic to pets if ingested.

From Los Angeles Times

They include titanium dioxide, for example, which can be found in many foods, cosmetics and medicines.

From Science Daily

The wavelength of the reflected light can be controlled via the thickness of the titanium dioxide layer.

From Science Daily

New York is considering a similar law that would also ban a fifth substance previously included in California’s law — titanium dioxide, which is used in Skittles.

From Los Angeles Times

AB 418, by Democratic Assembly members Jesse Gabriel and Buffy Wicks, initially drew headlines because it would have banned titanium dioxide, which is used in Skittles, but that chemical was dropped from the bill.

From Salon