monohydrate: meaning, definition, pronunciation and examples
C2Technical/Scientific
Quick answer
What does “monohydrate” mean?
A chemical compound containing one molecule of water of crystallization, or one hydroxyl group, per molecule of the principal substance.
Audio
Pronunciation
Definition
Meaning and Definition
A chemical compound containing one molecule of water of crystallization, or one hydroxyl group, per molecule of the principal substance.
A solid, often crystalline, form of a compound (like a salt, sugar, or pharmaceutical) where exactly one water molecule is associated with each formula unit of the primary substance. It is a common descriptor in chemistry, pharmacology, and food science to specify a material's precise hydration state.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling of related terms may follow regional conventions (e.g., 'hydrate'/'hydrated' vs. 'hydrate'/'hydrated' remains the same).
Connotations
None; purely technical term in both variants.
Frequency
Identically low frequency in general language but standard in scientific/technical contexts in both regions.
Grammar
How to Use “monohydrate” in a Sentence
N (of N) + monohydrateN-monohydratethe monohydrate of [compound]exists/isolated/crystallized as a monohydrateVocabulary
Collocations
Examples
Examples of “monohydrate” in a Sentence
verb
British English
- The salt can monohydrate under those humid conditions, though dihydrate is more common.
- The compound did not monohydrate as expected.
American English
- The product may monohydrate if stored improperly.
- We need to see if it will monohydrate during crystallization.
adjective
British English
- The monohydrate crystals were filtered and dried.
- We analysed the monohydrate species using XRD.
American English
- The monohydrate form has better stability.
- Check the monohydrate content in the sample.
Usage
Meaning in Context
Business
Used in specifications for raw materials, supplements, or pharmaceutical ingredients (e.g., 'We source only creatine monohydrate for our product line').
Academic
Common in chemistry, biochemistry, and pharmacology papers describing the synthesis, properties, or crystal structure of compounds.
Everyday
Virtually never used in everyday conversation. Might be encountered on supplement labels or in specialized hobbies.
Technical
The primary domain of use. Precise term in chemical formulas, material data sheets, pharmaceutical patents, and nutritional supplement specifications.
Vocabulary
Synonyms of “monohydrate”
Neutral
Weak
Vocabulary
Antonyms of “monohydrate”
Watch out
Common Mistakes When Using “monohydrate”
- Pronouncing it as /ˈmɒn.əʊ.haɪ.drɪt/ (wrong stress).
- Using it as an uncountable noun (e.g., 'some monohydrate' is acceptable, but 'a monohydrate' is more precise).
- Confusing 'monohydrate' with 'monohydric' (which refers to alcohols with one OH group).
FAQ
Frequently Asked Questions
No. 'Hydrated' is a general term meaning containing water. 'Monohydrate' is a precise term meaning containing exactly one water molecule per formula unit of the main compound.
It is highly unlikely and would sound very technical. You would typically only use it when discussing specific chemical compounds, supplements, or industrial ingredients.
Yes. Glucose monohydrate has one water molecule bound to each glucose molecule, affecting its weight, crystal structure, and some physical properties like solubility. Anhydrous glucose has no bound water.
The primary stress is on 'hy', as in 'hy-DRATE'. British: /ˌmɒn.əʊˈhaɪ.dreɪt/. American: /ˌmɑː.noʊˈhaɪ.dreɪt/. The prefix 'mono-' has a secondary stress.
A chemical compound containing one molecule of water of crystallization, or one hydroxyl group, per molecule of the principal substance.
Monohydrate is usually technical/scientific in register.
Learning
Memory Aids
Mnemonic
Think of a MONO (single) HYDRATE (water molecule) hitching a ride with a bigger molecule, like one water bottle (monohydrate) per lunchbox.
Conceptual Metaphor
A WATER-COAT: The principal molecule wears a single, tightly bound coat of water.
Practice
Quiz
What does the 'mono-' in 'monohydrate' specifically indicate?