fruc·tose

[fruhk-tohs, frook-, frook-]
noun
Chemistry, Pharmacology. a yellowish to white, crystalline, water-soluble, levorotatory ketose sugar, C 6 H 12 O 6 , sweeter than sucrose, occurring in invert sugar, honey, and a great many fruits: used in foodstuffs and in medicine chiefly in solution as an intravenous nutrient.
Also called levulose, fruit sugar.


Origin:
1860–65; fruct- + -ose2

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Collins
World English Dictionary
fructose (ˈfrʌktəʊs, -təʊz, ˈfrʊk-) [Click for IPA pronunciation guide]
 
n
laevulose, Also called: fruit sugar a white crystalline water-soluble sugar occurring in honey and many fruits. Formula: C6H12O6
 
[C19: from Latin frūctus fruit + -ose²]

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10
Fructose is always a great word to know.
So is peptide bond. Does it mean:
What the bond of amino acids are called
anything that occupies space and has mass
Etymonline
Word Origin & History

fructose
"sugar found in fruit," 1864, coined in Eng. from L. fructus (see fruit) + chemical suffix -ose.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

fructose fruc·tose (frŭk'tōs', fr&oobreve;k'-)
n.
A very sweet sugar occurring in many fruits and honey and used as a preservative for foodstuffs and as an intravenous nutrient. Also called fruit sugar, levulose.

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
fructose   (frŭk'tōs')  Pronunciation Key 
A simple sugar (monosaccharide) found in honey, many fruits, and some vegetables. Fructose linked to glucose is the structure of table sugar, or sucrose. Fructose is an important source of energy for cellular processes. Chemical formula: C6H12O6.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Fructose apparently tricks the brain into thinking you are hungrier than you
  actually are.
Lactose as well as fructose are sugars and carbohydrates that are relatively
  low on the glycemic index.
The enzyme splits sucrose into fructose and glucose, researchers found, then
  adds the glucose to the growing plaque strings.
If you want to lose weight, drink only water and fruit juice, nothing with high
  fructose corn syrup in it though.
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