aspartame

[uh-spahr-teym, a-spahr-, as-per-teym]
noun
a white, crystalline, odorless, slightly water-soluble noncarbohydrate powder, C 14 H 18 N 2 O 5 , synthesized from amino acids, that is 150–200 times as sweet as sugar: used as a low-calorie sugar substitute in soft drinks, table sweeteners, and other food products.

Origin:
1970–75; aspart(yl phenyl)a(linine) m(ethyl) e(ster), the powder's chemical name

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World English Dictionary
aspartame (əˈspɑːˌteɪm)
 
n
an artificial sweetener produced from aspartic acid. Formula: C14H18N2O5
 
[C20: from aspart(ic acid) + (phenyl)a(lanine) m(ethyl) e(ster)]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

aspartame
artificial sweetener, 1973, from aspartic (1836), from asparagine, irregular formation from asparagus, so called because the compound was found in asparagus and other vegetables.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

aspartame as·par·tame (ās'pər-tām', ə-spär'-)
n.
A low-calorie, artificial sweetening agent derived from aspartic acid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
aspartame   (ās'pər-tām', ə-spär'-)  Pronunciation Key 
An artificial sweetener formed from aspartic acid. Chemical formula: C14H18N2O5.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Any products containing aspartame should be avoided.
More than two amino acids are essential to human life, and aspartame does not have them all.
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