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| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |
"Do not do unto others as you would that they should do unto you. Their tastes may not be the same." [George Bernard Shaw, 1898]
gold (gōld)
n.
Symbol Au
A soft yellow element that resists corrosion and is the most malleable and ductile metal. A good thermal and electrical conductor, gold is generally alloyed to increase its strength. Atomic number 79; atomic weight 196.967; melting point 1,064.2°C; boiling point 2,856°C; specific gravity 19.3; valence 1, 3.
| gold (gōld) Pronunciation Key
Symbol Au A soft, shiny, yellow element that is the most malleable of all the metals. It occurs in veins and in alluvial deposits. Because it is very durable, resistant to corrosion, and a good conductor of heat and electricity, gold is used as a plated coating on electrical and mechanical components. It is also an international monetary standard and is used in jewelry and for decoration. Atomic number 79; atomic weight 196.967; melting point 1,063.0°C; boiling point 2,966.0°C; specific gravity 19.32; valence 1, 3. See Periodic Table. See Note at element. |
gold definition
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