glycoside: meaning, definition, pronunciation and examples
C2/TechnicalFormal, Scientific/Technical
Quick answer
What does “glycoside” mean?
A compound in which a sugar molecule is bound to another functional group via a glycosidic bond.
Audio
Pronunciation
Definition
Meaning and Definition
A compound in which a sugar molecule is bound to another functional group via a glycosidic bond.
A large class of molecules common in plants and some animals, where a sugar (glycone) is attached to a non-sugar component (aglycone). Many have significant biological or pharmacological activity, such as acting as toxins, drugs, or pigments.
Dialectal Variation
British vs American Usage
Differences
No significant spelling, pronunciation, or usage differences. The scientific term is standardized internationally.
Connotations
Neutral technical term in both varieties.
Frequency
Exclusively used in scientific, medical, and biochemical contexts. Equally rare in general discourse for both varieties.
Grammar
How to Use “glycoside” in a Sentence
The plant contains [glycosides].[Glycosides] of [aglycone name] are common.The [glycoside] is hydrolysed to yield [sugar] and [aglycone].Vocabulary
Collocations
Examples
Examples of “glycoside” in a Sentence
verb
British English
- The enzyme will glycosidate the aglycone.
American English
- The enzyme will glycosylate the aglycone to form the glycoside.
adjective
British English
- The glycosidic fraction was collected.
- They studied the glycosidic bond hydrolysis.
American English
- The glycosidic fraction was collected.
- They studied the glycosidic linkage.
Usage
Meaning in Context
Business
Virtually never used, except potentially in highly specialised pharmaceutical or biotechnology investment reports.
Academic
Core term in biochemistry, pharmacology, phytochemistry, and related life sciences.
Everyday
Extremely rare. Might be encountered in contexts discussing plant poisoning (e.g., 'cyanogenic glycosides in apple seeds') or herbal medicine.
Technical
The primary register. Used precisely to describe molecular structure and classification in research papers, laboratory protocols, and technical manuals.
Vocabulary
Synonyms of “glycoside”
Weak
Vocabulary
Antonyms of “glycoside”
Watch out
Common Mistakes When Using “glycoside”
- Mispronouncing as /ˈɡlɪk.ə.saɪd/ (with a short 'i'). The first syllable is /ˈɡlaɪ-/ (like 'glycogen').
- Using it as a synonym for 'sugar' or 'carbohydrate'. It is specifically a compound *containing* a sugar.
- Misspelling as 'glucoside' when referring to glycosides in general (glucoside is a subset).
FAQ
Frequently Asked Questions
No, it is a compound *containing* a sugar molecule (the glycone) that is chemically linked to another, non-sugar molecule (the aglycone).
'Glycoside' is the general term for any sugar attached to an aglycone. 'Glucoside' is a specific type of glycoside where the sugar is glucose.
They are crucial in nature and medicine. Many plant toxins, drugs (e.g., cardiac glycosides like digoxin), pigments (anthocyanins), and flavor compounds exist as glycosides, which can store or modify the activity of the aglycone.
It is broken down by hydrolysis, either with acid or specific enzymes called glycosidases, which cleave the glycosidic bond to release the free sugar and aglycone.
A compound in which a sugar molecule is bound to another functional group via a glycosidic bond.
Glycoside is usually formal, scientific/technical in register.
Glycoside: in British English it is pronounced /ˈɡlaɪ.kə.saɪd/, and in American English it is pronounced /ˈɡlaɪ.kə.saɪd/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: 'GLYCO' for sugar (like glycogen) + 'SIDE' as something attached to its side. A sugar with something on its side.
Conceptual Metaphor
A KEY (the sugar) that unlocks a LOCK (the aglycone) to release its activity upon hydrolysis.
Practice
Quiz
What is the defining structural feature of a glycoside?