aerator

[air-ey-ter, ey-uh-rey-]

aer·a·tor

[air-ey-ter, ey-uh-rey-]
noun
1.
an apparatus for aerating water or other fluids.
2.
a device for introducing air into a bin of wheat or other grain in order to prevent the accumulation of moisture, keeping it free of fungi and insects.

Origin:
1860–65; aerate + -or2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Aerator is always a great word to know.
So is gobo. Does it mean:
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.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
Collins
World English Dictionary
aerate (ˈɛəreɪt)
 
vb
1.  to charge (a liquid) with a gas, esp carbon dioxide, as in the manufacture of effervescent drink
2.  to expose to the action or circulation of the air, so as to purify
 
aer'ation
 
n
 
'aerator
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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