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alleviator

 - 2 dictionary results

al⋅le⋅vi⋅a⋅tor

[uh-lee-vee-ey-ter]
–noun
1. a person or thing that alleviates.
2. (in a pipeline) an airtight box, having a free liquid surface, for cushioning the shock of water hammer.

Origin:
1805–15; alleviate + -or 2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To alleviator
al·le·vi·ate   (ə-lē'vē-āt')   
tr.v.   al·le·vi·at·ed, al·le·vi·at·ing, al·le·vi·ates
To make (pain, for example) more bearable: a drug that alleviates cold symptoms. See Synonyms at relieve.

[Middle English alleviaten, from Late Latin alleviāre, alleviāt-, to lighten : Latin ad-, ad- + levis, light; see legwh- in Indo-European roots.]
al·le'vi·a'tion n., al·le'vi·a'tor n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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