(historical) The region of pure light and fire; the highest heaven, where the pure element of fire was supposed by the ancients to exist: the same as the ether, the ninth heaven according to ancien...

(organic chemistry, in combination) used attributively to describe a compound having three nitrogen atoms in two rings

National Association of Securities Dealers Automated Quotations, an electronic stock market.

A painting style of East Africa, featuring brilliant colours and using low-cost materials such as masonite and bicycle paint.