Engelsk

crystallisation

gb/kɹˈɪstəlɪsˈeɪʃən/ us/kɹˈɪstəlɪsˈeɪʃən/
C1 Engelsk
Betydninger
0 betydninger
Navneord technical C1 process
1

formation of crystals

when a substance becomes solid crystals

Brugsmønster: crystallisation of [substance] (from [solution/melt])
Typisk fejl:
Learners often misspell it as *crystalisation* (one 'l'), or mix it up with the US spelling *crystallization*.
Synonymer
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.)
Antonymer
dissolution (Crystals or solids go into solution instead of forming.) | melting (A solid becomes liquid rather than forming crystals.)
Ordforbindelser
crystallisation occurs |initiate crystallisation |trigger crystallisation |crystallisation from solution |crystallisation of sugar |salt crystallisation |ice crystallisation |crystallisation rate |crystallisation temperature |controlled crystallisation
Temaer
science |chemistry |materials
Eksempler
  • 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.
Læringseksempler
  • Crystallisation happens when crystals form.
  • We waited for crystallisation in the solution.
Navneord technical C2 process
2

purifying by forming crystals

a way to clean a substance by making crystals

Brugsmønster: crystallisation of [compound] (to remove [impurities])
Typisk fejl:
Learners may use *crystallisation* when they specifically mean *recrystallisation* (crystallising again for extra purification).
Synonymer
crystal purification (Emphasises the goal (purity) rather than the physical process.) | separation (Much broader; crystallisation is one specific separation technique.)
Antonymer
contamination (The opposite outcome: introducing impurities rather than removing them.)
Ordforbindelser
purification by crystallisation |crystallisation step |industrial crystallisation |crystallisation unit |crystallisation process |batch crystallisation |continuous crystallisation |crystallisation for purification |recover by crystallisation |high-purity crystals
Temaer
science |chemistry |manufacturing
Eksempler
  • 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.
Læringseksempler
  • Crystallisation can help purify a chemical.
Navneord formal C1 process
3

becoming clear and definite

when ideas become clear and fixed

Brugsmønster: the crystallisation of [idea/plan/opinion]
Typisk fejl:
Learners may overuse it in casual speech; this figurative sense is more common in formal writing than in everyday conversation.
Synonymer
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.)
Antonymer
confusion (Lack of clarity and definite form.) | vagueness (Not clearly defined or settled.)
Ordforbindelser
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
Temaer
thinking |writing |emotions
Eksempler
  • 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.
Læringseksempler
  • The meeting helped the crystallisation of our plan.
Navneord technical C2 entity
4

crystal deposit or mass

a layer or mass of crystals

Brugsmønster: a crystallisation of [substance] (on/in [place])
Typisk fejl:
This countable use (*a crystallisation*) is less common; learners may prefer 'crystals' or 'crystal deposit' in general writing.
Synonymer
crystal deposit (More transparent and common outside specialist writing.) | encrustation (Emphasises a crust on a surface; may not be strictly crystalline.)
Antonymer
solution (Material is dissolved rather than present as crystals.)
Ordforbindelser
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
Temaer
science |chemistry |materials
Eksempler
  • 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.
Læringseksempler
  • There was crystallisation on the glass.
Grammatik
Opslagsform
crystallisation
IPA
GB/kɹˈɪstəlɪsˈeɪʃən/
US/kɹˈɪstəlɪsˈeɪʃən/
Stavelser og tryk
crys - tal - lisa - tion (4 stavelser)
Stress on 1st syllable (crys)
Ordformer
Noun
  • Base: crystallisation
  • Plural: crystallisations
Ordfamilie
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
Udtryk

crystallisation point

1
/kɹˈɪstəlɪsˈeɪʃən pˈɔɪnt/
fixed phrase technical

temperature crystals start forming

the temperature when crystals begin to form

Eksempler
  • 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

Eksempler
  • 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

Eksempler
  • 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

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

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