snuff 3 
(sn
ŭf)
n.1. a. A preparation of finely pulverized tobacco that can be drawn up into the nostrils by inhaling. Also called smokeless tobacco.
b. The quantity of this tobacco that is inhaled at a single time; a pinch.
2. See dip.
3. A powdery substance, such as a medicine, taken by inhaling.
intr.v. snuffed,
snuff·ing,
snuffs To use or inhale snuff.
Idiom: up to snuff Informal 1. Normal in health.
2. Up to standard; adequate.
[Dutch snuf, short for snuftabak : Dutch snuffen, to sniff; see SNUFFLE + tabak, tobacco.]