Describes materials or actions which can be dangerous. In the United States, OSHA (the Occupational Safety and Health Administration, a federal agency) requires that manufacturers of most materials publish "material safety data sheets" that describe how those materials must be handled and disposed of. When in doubt, ask the manufacturer or supplier to send you a copy.
Paintings which are a part of the Zen tradition of Japanese Buddhism. Zenga are often painted by priests, and are typically ink drawings and calligraphy.
Example: Hakuin Ekaku's One Hand Clapping, 1766
A bluish-white, lustrous metallic element that is brittle at room temperature but malleable with heating. Used in galvanizing iron, it is often alloyed in making brass, bronze, various solders, and nickel silver, in manufacturing many products including various household objects. Atomic symbol Zn; atomic number 30; atomic weight 65.37; melting point 419.4° C.; specific gravity 7.133 (25°C); valence 2.
White formed from zinc oxide, giving pure cool cover. In oil it needs much medium, and has some tendency to crack. In watercolor it's known as Chinese white.
A lithographic process using zinc plates instead of stone.
Another name for chrome green.