Αγγλικά

crystallisation

gb/kɹˈɪstəlɪsˈeɪʃən/ us/kɹˈɪstəlɪsˈeɪʃən/
C1 Αγγλικά
Σημασίες
0 σημασίες
Ουσιαστικό technical C1 process
1

formation of crystals

when a substance becomes solid crystals

Μοτίβο χρήσης: crystallisation of [substance] (from [solution/melt])
Συχνό λάθος:
Learners often misspell it as *crystalisation* (one 'l'), or mix it up with the US spelling *crystallization*.
Συνώνυμα
crystal formation (A plain-language paraphrase of the process.) | solidification (Broader term; not necessarily into a crystal structure.) | precipitation (Often used when a solid forms from a solution, but not always as crystals.)
Αντώνυμα
dissolution (Crystals or solids go into solution instead of forming.) | melting (A solid becomes liquid rather than forming crystals.)
Συνδυασμοί λέξεων
crystallisation occurs |initiate crystallisation |trigger crystallisation |crystallisation from solution |crystallisation of sugar |salt crystallisation |ice crystallisation |crystallisation rate |crystallisation temperature |controlled crystallisation
Θέματα
science |chemistry |materials
Παραδείγματα
  • As the solution cooled, crystallisation began along the sides of the beaker.
  • Rapid crystallisation can trap impurities inside the crystal lattice.
  • The lab monitored the crystallisation of salt as the water evaporated.
Παραδείγματα για μαθητές
  • Crystallisation happens when crystals form.
  • We waited for crystallisation in the solution.
Ουσιαστικό technical C2 process
2

purifying by forming crystals

a way to clean a substance by making crystals

Μοτίβο χρήσης: crystallisation of [compound] (to remove [impurities])
Συχνό λάθος:
Learners may use *crystallisation* when they specifically mean *recrystallisation* (crystallising again for extra purification).
Συνώνυμα
crystal purification (Emphasises the goal (purity) rather than the physical process.) | separation (Much broader; crystallisation is one specific separation technique.)
Αντώνυμα
contamination (The opposite outcome: introducing impurities rather than removing them.)
Συνδυασμοί λέξεων
purification by crystallisation |crystallisation step |industrial crystallisation |crystallisation unit |crystallisation process |batch crystallisation |continuous crystallisation |crystallisation for purification |recover by crystallisation |high-purity crystals
Θέματα
science |chemistry |manufacturing
Παραδείγματα
  • The final crystallisation removed most of the coloured impurities from the product.
  • Crystallisation is used in industry to recover sugar from syrup.
  • They added a seed crystal to make the crystallisation more predictable.
Παραδείγματα για μαθητές
  • Crystallisation can help purify a chemical.
Ουσιαστικό formal C1 process
3

becoming clear and definite

when ideas become clear and fixed

Μοτίβο χρήσης: the crystallisation of [idea/plan/opinion]
Συχνό λάθος:
Learners may overuse it in casual speech; this figurative sense is more common in formal writing than in everyday conversation.
Συνώνυμα
clarification (Focuses on becoming easier to understand, not necessarily becoming fixed.) | solidification (Metaphor for becoming firm; less about mental clarity.) | taking shape (More informal and less 'fixed' than crystallisation.)
Αντώνυμα
confusion (Lack of clarity and definite form.) | vagueness (Not clearly defined or settled.)
Συνδυασμοί λέξεων
the crystallisation of ideas |the crystallisation of a plan |the crystallisation of views |a moment of crystallisation |lead to crystallisation |help the crystallisation of |crystallisation into a policy |crystallisation of tensions |crystallisation of identity |crystallisation of opposition
Θέματα
thinking |writing |emotions
Παραδείγματα
  • The workshop led to the crystallisation of a workable strategy.
  • A few tough questions prompted the crystallisation of her argument.
  • The crisis accelerated the crystallisation of public opinion.
Παραδείγματα για μαθητές
  • The meeting helped the crystallisation of our plan.
Ουσιαστικό technical C2 entity
4

crystal deposit or mass

a layer or mass of crystals

Μοτίβο χρήσης: a crystallisation of [substance] (on/in [place])
Συχνό λάθος:
This countable use (*a crystallisation*) is less common; learners may prefer 'crystals' or 'crystal deposit' in general writing.
Συνώνυμα
crystal deposit (More transparent and common outside specialist writing.) | encrustation (Emphasises a crust on a surface; may not be strictly crystalline.)
Αντώνυμα
solution (Material is dissolved rather than present as crystals.)
Συνδυασμοί λέξεων
a crystallisation forms |surface crystallisation |a white crystallisation |salt crystallisation on |crystallisation deposit |crystallisation layer |needle-like crystallisation |a heavy crystallisation |visible crystallisation |patches of crystallisation
Θέματα
science |chemistry |materials
Παραδείγματα
  • A white crystallisation appeared around the rim after the liquid dried.
  • The technician scraped off the crystallisation to weigh the product.
  • You can see crystallisation on the surface where the brine seeped out.
Παραδείγματα για μαθητές
  • There was crystallisation on the glass.
Γραμματική
Λημματική μορφή
crystallisation
IPA
GB/kɹˈɪstəlɪsˈeɪʃən/
US/kɹˈɪstəlɪsˈeɪʃən/
Συλλαβές και τόνος
crys - tal - lisa - tion (4 συλλαβές)
Stress on 1st syllable (crys)
Τύποι λέξης
Noun
  • Base: crystallisation
  • Plural: crystallisations
Οικογένεια λέξεων
Forms
crystallisations noun
Core family
crystal noun B1 crystallise verb C1
Related words
crystalline adjective crystallization noun C1 crystallize verb B2
Advanced or less common
recrystallise verb recrystallisation noun
Εκφράσεις

crystallisation point

1
/kɹˈɪstəlɪsˈeɪʃən pˈɔɪnt/
fixed phrase technical

temperature crystals start forming

the temperature when crystals begin to form

Παραδείγματα
  • Impurities can lower the crystallisation point of a solution.
  • The mixture was cooled slowly until it reached its crystallisation point.

fractional crystallisation

1
/fɹˈækʃənəl kɹˈɪstəlɪsˈeɪʃən/
fixed phrase technical

separating by different crystallising points

separating substances because they form crystals at different times

Παραδείγματα
  • Fractional crystallisation can separate salts with similar properties.
  • In geology, fractional crystallisation helps explain how magma changes composition as it cools.

heat of crystallisation

1
/hˈit əv kɹˈɪstəlɪsˈeɪʃən/
fixed phrase technical

heat change during crystal formation

the heat change when crystals form

Παραδείγματα
  • The heat of crystallisation warmed the mixture slightly as the crystals formed.
  • Engineers accounted for the heat of crystallisation when scaling up the process.

water of crystallisation

1
/wˈɔtɚ əv kɹˈɪstəlɪsˈeɪʃən/
fixed phrase technical

water bound in crystals

water that is part of a crystal

Παραδείγματα
  • Heating the crystals drove off the water of crystallisation.
  • Copper sulfate turns white when it loses its water of crystallisation.

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