condensation nucleus: meaning, definition, pronunciation and examples
C2Technical/scientific
Quick answer
What does “condensation nucleus” mean?
A microscopic particle (e.
Audio
Pronunciation
Definition
Meaning and Definition
A microscopic particle (e.g., dust, salt) in the atmosphere around which water vapour condenses to form droplets.
A fundamental concept in meteorology and atmospheric physics describing the initial site for the phase change from vapour to liquid water, crucial for cloud and precipitation formation.
Dialectal Variation
British vs American Usage
Differences
No lexical differences; the term is identical in spelling and meaning.
Connotations
Purely technical, with no regional connotations.
Frequency
Extremely rare outside scientific contexts in both regions. Slightly more common in US academic writing due to larger atmospheric science research output.
Grammar
How to Use “condensation nucleus” in a Sentence
[Particle] acts as a condensation nucleus.Water vapour condenses onto a condensation nucleus.The process requires a condensation nucleus.Vocabulary
Collocations
Examples
Examples of “condensation nucleus” in a Sentence
verb
British English
- The vapour condenses around a nucleus.
- Dust particles can nucleate condensation.
American English
- Water condenses on a nucleus.
- Aerosols nucleate cloud droplets.
adverb
British English
- [No direct adverbial form]
American English
- [No direct adverbial form]
adjective
British English
- The nucleating particle was identified.
- Condensation-nuclei counters are essential instruments.
American English
- The nucleation process is complex.
- Condensation-nucleus concentrations were measured.
Usage
Meaning in Context
Business
[Virtually never used]
Academic
Central term in meteorology, atmospheric physics, and environmental science papers.
Everyday
Extremely rare. Might appear in popular science articles about weather.
Technical
Precise, non-negotiable term for the initial particle in droplet formation.
Vocabulary
Synonyms of “condensation nucleus”
Strong
Neutral
Weak
Vocabulary
Antonyms of “condensation nucleus”
Watch out
Common Mistakes When Using “condensation nucleus”
- Using 'condensation core' (incorrect).
- Confusing it with 'atomic nucleus'.
- Using it as a countable noun without an article (e.g., 'Condensation nucleus is needed' instead of 'A condensation nucleus is needed').
FAQ
Frequently Asked Questions
No. 'Cloud seed' refers to materials deliberately dispersed to alter clouds (cloud seeding). A condensation nucleus is the natural particle.
Almost any microscopic solid or liquid aerosol can act as one, but some (like salt or sulphuric acid) are more 'hygroscopic' and effective than others (like dust).
It's fundamental to understanding cloud formation, precipitation, and climate models, as the number and type of nuclei directly affect cloud properties.
Yes, the plural is 'condensation nuclei' (pronounced /ˈnjuː.kli.aɪ/ in UK, /ˈnuː.kli.aɪ/ in US).
A microscopic particle (e.
Condensation nucleus is usually technical/scientific in register.
Condensation nucleus: in British English it is pronounced /ˌkɒn.denˈseɪ.ʃən ˈnjuː.kli.əs/, and in American English it is pronounced /ˌkɑːn.denˈseɪ.ʃən ˈnuː.kli.əs/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[None specific to this term]”
Learning
Memory Aids
Mnemonic
Think of a 'nucleus' like the centre of a cell. A 'condensation nucleus' is the tiny centre or seed that a water droplet forms around, like a pearl forming around a grain of sand.
Conceptual Metaphor
SEED FOR GROWTH (The nucleus is the seed from which the droplet/cloud grows).
Practice
Quiz
What is the primary role of a condensation nucleus?