sucrase: meaning, definition, pronunciation and examples
C2 (Very Low Frequency)Scientific, Technical, Medical
Quick answer
What does “sucrase” mean?
An enzyme that breaks down sucrose into simpler sugars, glucose and fructose.
Audio
Pronunciation
Definition
Meaning and Definition
An enzyme that breaks down sucrose into simpler sugars, glucose and fructose.
In biochemistry, the digestive enzyme (also known as invertase) catalyzing the hydrolysis of sucrose. The term is sometimes used metaphorically to describe any agent that breaks down complex structures into simpler components.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. The scientific term is identical in both dialects. 'Invertase' is an equally common synonym in scientific literature globally.
Connotations
None beyond its precise biochemical meaning.
Frequency
Extremely rare in both dialects, confined to specialist texts.
Grammar
How to Use “sucrase” in a Sentence
Sucrase breaks down sucrose.A deficiency in sucrase causes...The activity of sucrase was measured.Vocabulary
Collocations
Usage
Meaning in Context
Business
Virtually never used.
Academic
Used in biochemistry, biology, and medical research papers and textbooks.
Everyday
Not used in everyday conversation.
Technical
The primary context; used in lab reports, clinical diagnoses (e.g., Congenital Sucrase-Isomaltase Deficiency), and nutritional science.
Vocabulary
Synonyms of “sucrase”
Neutral
Weak
Watch out
Common Mistakes When Using “sucrase”
- Using 'sucrase' to mean 'sucrose'.
- Pronouncing it as /ˈsʌkreɪs/ (like 'suck'). The first syllable is 'soo'.
- Assuming it is a common word.
FAQ
Frequently Asked Questions
No, they are completely different. Sucrose is the sugar molecule (table sugar). Sucrase is the enzyme that digests it.
Sucrase is produced in the small intestine, on the surface of intestinal cells (the brush border), where it aids in digestion.
A deficiency leads to Congenital Sucrase-Isomaltase Deficiency (CSID), causing bloating, gas, diarrhoea, and abdominal pain after consuming sucrose.
Yes, in most biochemical contexts, 'invertase' is a perfect synonym for sucrase. 'Invertase' is often used in industrial and microbiological contexts, while 'sucrase' is common in human physiology.
An enzyme that breaks down sucrose into simpler sugars, glucose and fructose.
Sucrase is usually scientific, technical, medical in register.
Sucrase: in British English it is pronounced /ˈsuːkreɪz/, and in American English it is pronounced /ˈsuːkreɪs/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: 'SUCROSE' + '-ASE' (a common ending for enzymes). Sucrase is the enzyme for sucrose.
Conceptual Metaphor
A KEY that UNLOCKS the complex sugar sucrose, splitting it into two simpler parts.
Practice
Quiz
What is the primary function of sucrase?