Calgon

Cal·gon

[kal-gon]
Trademark.
a brand of sodium phosphate glass (sodium hexametaphosphate) soluble in water: used as a water-softening agent.
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Calgon (ˈkælɡɒn) [Click for IPA pronunciation guide]
 
n
trademark a chemical compound, sodium hexametaphosphate, with water-softening properties, used in detergents

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10
Calgon is always a great word to know.
So is interrobang. Does it mean:
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.
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