英語

crystallisation

gb/kɹˈɪstəlɪsˈeɪʃən/ us/kɹˈɪstəlɪsˈeɪʃən/
C1 英語
語義
0件の語義
名詞 technical C1 process
1

formation of crystals

when a substance becomes solid crystals

用法パターン: crystallisation of [substance] (from [solution/melt])
よくある間違い:
Learners often misspell it as *crystalisation* (one 'l'), or mix it up with the US spelling *crystallization*.
類義語
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.)
対義語
dissolution (Crystals or solids go into solution instead of forming.) | melting (A solid becomes liquid rather than forming crystals.)
コロケーション
crystallisation occurs |initiate crystallisation |trigger crystallisation |crystallisation from solution |crystallisation of sugar |salt crystallisation |ice crystallisation |crystallisation rate |crystallisation temperature |controlled crystallisation
テーマ
science |chemistry |materials
例文
  • 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.
学習者向け例文
  • Crystallisation happens when crystals form.
  • We waited for crystallisation in the solution.
名詞 technical C2 process
2

purifying by forming crystals

a way to clean a substance by making crystals

用法パターン: crystallisation of [compound] (to remove [impurities])
よくある間違い:
Learners may use *crystallisation* when they specifically mean *recrystallisation* (crystallising again for extra purification).
類義語
crystal purification (Emphasises the goal (purity) rather than the physical process.) | separation (Much broader; crystallisation is one specific separation technique.)
対義語
contamination (The opposite outcome: introducing impurities rather than removing them.)
コロケーション
purification by crystallisation |crystallisation step |industrial crystallisation |crystallisation unit |crystallisation process |batch crystallisation |continuous crystallisation |crystallisation for purification |recover by crystallisation |high-purity crystals
テーマ
science |chemistry |manufacturing
例文
  • 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.
学習者向け例文
  • Crystallisation can help purify a chemical.
名詞 formal C1 process
3

becoming clear and definite

when ideas become clear and fixed

用法パターン: the crystallisation of [idea/plan/opinion]
よくある間違い:
Learners may overuse it in casual speech; this figurative sense is more common in formal writing than in everyday conversation.
類義語
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.)
対義語
confusion (Lack of clarity and definite form.) | vagueness (Not clearly defined or settled.)
コロケーション
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
テーマ
thinking |writing |emotions
例文
  • 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.
学習者向け例文
  • The meeting helped the crystallisation of our plan.
名詞 technical C2 entity
4

crystal deposit or mass

a layer or mass of crystals

用法パターン: a crystallisation of [substance] (on/in [place])
よくある間違い:
This countable use (*a crystallisation*) is less common; learners may prefer 'crystals' or 'crystal deposit' in general writing.
類義語
crystal deposit (More transparent and common outside specialist writing.) | encrustation (Emphasises a crust on a surface; may not be strictly crystalline.)
対義語
solution (Material is dissolved rather than present as crystals.)
コロケーション
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
テーマ
science |chemistry |materials
例文
  • 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.
学習者向け例文
  • There was crystallisation on the glass.
文法
辞書形
crystallisation
IPA
GB/kɹˈɪstəlɪsˈeɪʃən/
US/kɹˈɪstəlɪsˈeɪʃən/
音節・強勢
crys - tal - lisa - tion (4音節)
Stress on 1st syllable (crys)
活用形
Noun
  • Base: crystallisation
  • Plural: crystallisations
関連語
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
表現

crystallisation point

1
/kɹˈɪstəlɪsˈeɪʃən pˈɔɪnt/
fixed phrase technical

temperature crystals start forming

the temperature when crystals begin to form

例文
  • 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

例文
  • 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

例文
  • 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

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

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