What is "naswar"

Naswār (; Cyrillic script: насва́р), also called nās , nāts , or nasvay , is a moist, powdered tobacco snuff consumed mostly in Afghanistan, Pakistan, India, Iran, Kazakhstan, Kyrgyzstan, Russia, Tajikistan, Turkmenistan, and Uzbekistan. Naswar is stuffed in the floor of the mouth under the lower lip, or inside the cheek, for extended periods of time. It is similar to dipping tobacco and snus.