disaccharides

IPA/daɪˈsæk.ə.raɪd/
IPA/daɪˈsæk.ə.raɪd/

disaccharides — noun

  • disaccharidessingular
  • disaccharidesesplural

1. Sugars built from two simple-sugar molecules linked by a chemical bond — familia

1.nounC2
Definition

Sugars built from two simple-sugar molecules linked by a chemical bond — familiar examples include sucrose (table sugar), lactose (milk sugar), and maltose (malt sugar).

Example

Sucrose, the disaccharide found in sugar cane, gives energy to Arjun before his morning run.

common disaccharide: sucrose in sugar cane

Inês learned in biology class that maltose is a disaccharide formed during starch digestion.

domain: biology classroom context

Common collocations
  • common disaccharides include
  • break down disaccharides
  • disaccharides found in
  • disaccharides such as sucrose
  • dietary disaccharides
  • digest disaccharides
Synonyms
  • double sugar

    A plain-English term sometimes used in nutrition guides, but less precise than the scientific name.

  • sugar dimer

    Technical term used in organic chemistry; not common in everyday or nutritional writing.

Grammar Patterns

disaccharides + verb

disaccharides + in + [food source]

Usage Note

This noun appears most often in its plural form in scientific, nutritional, and medical writing. The singular form 'disaccharide' refers to one specific type or molecule of double-unit sugar. Distinguish from monosaccharides (single sugars such as glucose) and polysaccharides (long chains such as starch or cellulose).

Common Mistakes

Disaccharides are the same as simple sugars like glucose.
Disaccharides like sucrose are made of two simple sugars joined together, while glucose is a single sugar (monosaccharide).
Disaccharides contain two linked sugar units, not one.
Honey contains only disaccharides.
Honey contains a mix of monosaccharides and disaccharides, mainly fructose, glucose, and small amounts of maltose.
Many natural foods contain both types of sugar.

Word family

  • disaccharide
    nounC2
  • monosaccharide
    nounC2
  • polysaccharide
    nounC2
  • saccharide
    nounC2

Synonym discussion

Sense: noun/1

'Disaccharides', 'double sugars', 'sugar dimers', and 'oligosaccharides' all describe molecules made from linked sugar units, but they differ in precision and scope. 'Disaccharide' is the standard biochemical term for exactly two monosaccharide units joined by a glycosidic bond — it is the word used in textbooks, nutrition labels, and clinical contexts. 'Double sugar' is an informal lay term that a teacher or dietitian might use when speaking to children or the general public; it lacks the exactness needed in research or medical records. 'Sugar dimer' belongs almost exclusively to organic chemistry labs and describes the molecular geometry rather than the nutrient category. 'Oligosaccharide' is a broader class covering short chains of 3–10 sugar units (e.g., raffinose), so using it for sucrose or lactose would be inaccurate. In everyday usage: a dietitian writes 'limit added disaccharides such as sucrose' on a meal plan, while a chemist might note 'sucrose is a glucose–fructose dimer' in a reaction diagram.

double sugarsugar dimeroligosaccharide

Common collocations

Nouns

Phrases

  • break down into
  • a type of
  • found in

Prepositions

Etymology

GreekEnglish

The word 'disaccharide' was coined in the late 1800s as chemistry developed a system for naming sugars. It combines three parts: the Greek prefix 'di-' ('two'), the Greek root 'sákkharon' ('sugar', which also gave us 'saccharin' and 'saccharide'), and the chemical suffix '-ide' (used for classes of compounds). The term literally means 'a two-sugar compound'. Earlier chemists called these substances 'bioses' or 'double sugars', but 'disaccharide' became the international standard through the Geneva nomenclature system.

First known use

1864

1864, in the meaning defined above