Как по Английски будет 치석

noun

A member of the combined forces of central asian peoples, including mongols and turks, who under the leadership of genghis khan conquered much of asia and eastern europe in the early 13th century, and under tamerlane (14th century) established an empire with its capital at samarkand.

noun

A hard calcified deposit that forms on the teeth and contributes to their decay.

Примеры использования:

Tooth decay, fillings and tartar build-up can also all contribute to discolouration.